Correct Answer: B

Rationale: Someone who is heedless is not paying attention or being cautious. Therefore, a patient who is heedless can be described as careless, as they may not be taking proper care or paying attention to important things that affect their well-being. Choice A, 'unlucky,' is incorrect as being heedless is not related to luck. Choice C, 'no longer in care,' is incorrect as it does not accurately reflect the meaning of heedless. Choice D, 'hard of hearing,' is unrelated to the concept of being heedless.

Correct Answer: C

Rationale: In the given sentence, the word 'progeny' means descendants or offspring. It refers to the children or future generations of the patient. Choice A, 'Chest,' is incorrect as it does not relate to the context of the sentence. Choice B, 'Hormones,' is also incorrect as it is not synonymous with 'progeny.' Choice D, 'Lifetime,' is unrelated to the concept of offspring, making it an incorrect choice.

Correct Answer: A

Rationale: The correct answer is A: 'Mostly.' The word 'principally' means mainly or mostly. It is used to describe something that is primarily or predominantly true in a given context. Choice B, 'Clearly,' is incorrect as it does not reflect the primary meaning of the word. Choice C, 'In our opinion,' is incorrect as it does not capture the essence of 'principally.' Choice D, 'Royally,' is incorrect as it does not align with the definition of the word.

Correct Answer: C

Rationale: Inhibiting means to prevent, restrain, or impede. In the context of the sentence, inhibiting the action of a certain enzyme refers to hindering or slowing down the enzyme's activity. Choice A ('Occupying') is incorrect as inhibiting does not mean taking up space. Choice B ('Speeding') is incorrect as inhibiting does not mean to accelerate. Choice D ('Enhancing') is incorrect as inhibiting is the opposite of enhancing.

Correct Answer: A

Rationale: Corrected Question: In this context, the word 'rationale' refers to the underlying reasoning or justification for the treatment being explained step-by-step by the doctor. It pertains to the logical basis or thought process behind the chosen course of action. 'Prescription' (Choice B), 'Procedure' (Choice C), and 'Necessity' (Choice D) do not accurately capture the meaning of 'rationale' in the sentence provided.