Correct Answer: B

Rationale: The correct answer is B: 'apparent.' In the given sentence, 'overt' is used to describe signs that are evident or obvious. It indicates that Dr. Harris suspected Alicia might have the flu even though there were no clear or overt signs present. Choice A, 'concealed,' is incorrect as it means hidden or not easily visible, which is the opposite of 'overt.' Choices C and D, 'expert' and 'delectable,' are unrelated to the meaning of 'overt' in this context.

Correct Answer: C

Rationale: In alphabetical order, 'Assemble, assembly, assembling, assembled' is correct. The alphabetical order is determined by the first letter of each word. The correct sequence starts with 'Assemble,' followed by 'assembly,' then 'assembling,' and finally 'assembled.' Choice A, B, and D do not follow the correct alphabetical order as the words are not arranged alphabetically.

Correct Answer: A

Rationale: "Bilateral" refers to something that affects or involves both sides of the body, making "Present on two sides" the correct answer. The other options refer to one-sided or unrelated conditions.

Correct Answer: D

Rationale: 'Paroxysm' is the correct answer as it refers to a sudden, violent seizure or outburst. The other choices are incorrect because 'revelation' means a surprising and previously unknown fact, 'nutrient' refers to a substance that provides nourishment, and 'contraption' means a machine or device that is strange or unnecessarily complicated.

Correct Answer: A

Rationale: The word 'her' is the correct choice because it serves as the object of the preposition 'at.' In this sentence, 'looked at' requires an object pronoun, making 'her' the appropriate choice. Option B, 'Hers,' indicates possession, which is not needed in this context. Options C and D are not pronouns and do not fit grammatically in the sentence.