Correct Answer: C

Rationale: In this context, the word 'undergo' means to experience or go through a process. When someone undergoes something, it implies they are subjected to it or experiencing it. Therefore, in the sentence provided, 'experience' is the correct meaning. Choices A, B, and D are incorrect as they do not align with the idea of going through a process or experiencing something.

Correct Answer: B

Rationale: Concise is best defined as being brief or to the point, expressing much in few words. While accuracy and exactness are important qualities, concise specifically refers to being brief or succinct in communication. Choice A ('exact') is not the best definition, as being precise in language does not necessarily mean being concise. Choice C ('accurate') is also not the best definition, as accuracy relates more to correctness than brevity. Choice D ('assembled') is unrelated to the definition of concise.

Correct Answer: C

Rationale: The correct word that can be used to describe something that is thick and sticky, like viscosity, is 'gelatinous.' Gelatinous refers to a substance that has a jelly-like consistency, which aligns with the characteristics of something viscous. Options A, B, and D do not accurately capture the concept of being thick and sticky. 'Fluid' implies a substance that flows easily, 'molten' refers to something melted by heat, and 'malleable' describes the ability to be shaped without breaking.

Correct Answer: B

Rationale: A blood vessel that is distended is swollen. Distention refers to the state of being stretched beyond normal limits, which can cause the blood vessel to expand and swell. The term 'distended' is often used to describe blood vessels that are enlarged or swollen due to various reasons such as increased blood pressure or blockages. Choice A, 'overturned,' does not relate to the enlargement or swelling of a blood vessel. Choice C, 'twisted,' describes a different condition where the blood vessel is coiled or rotated, not necessarily enlarged. Choice D, 'overlong,' does not accurately describe the state of a distended blood vessel; instead, it implies excessive length rather than enlargement.

Correct Answer: A

Rationale: The word 'deleterious' means causing harm or damage. In this context, the sentence implies that the chemicals in plastic containers can be harmful to children's health. Therefore, the correct meaning of the underlined word is 'harmful,' making option A the most suitable choice. Option B 'Deleting' is incorrect because it refers to removing or erasing, which does not fit the context. Option C 'Delightful' is incorrect as it means causing great pleasure or delight, the opposite of the intended meaning. Option D 'Inoffensive' is incorrect as it means not causing any harm or annoyance, which is contrary to the negative impact described in the sentence.