Correct Answer: B

Rationale: The correct answer is B: 'Purified.' Aseptic means free from contamination or purified. In medical and scientific contexts, aseptic techniques are used to prevent contamination and maintain sterility in environments or procedures. Choice A, 'Infected,' is incorrect as aseptic refers to being free from contamination, not being infected. Choice C, 'Contaminated,' is incorrect as aseptic means the opposite of contaminated. Choice D, 'Sterilized,' is incorrect as aseptic focuses on the absence of contamination rather than the process of sterilization.

Correct Answer: B

Rationale: In this sentence, 'effect' is the correct term to use as it refers to the outcome or consequence of the weather, which was that everyone got wet. 'Effect' is a noun that indicates the result of a particular action or situation. Choice A 'result' is incorrect because it refers to the outcome of an action, not the outcome of weather. Choice C 'affect' is incorrect as it is used as a verb to show influence or make a difference. Choice D 'impact' is incorrect because it refers to a strong influence or effect.

Correct Answer: D

Rationale: The correct answer is 'D: Sunken.' Concave refers to a surface or shape that curves inward, while 'sunken' is the closest synonym, also indicating something that is depressed or hollowed inward. Choice 'B: Convex' is incorrect as it is the opposite of concave, representing a shape that bulges outward. Choices 'A: Sunburned' and 'C: Puffed out' do not relate to the concept of concave shapes.

Correct Answer: B

Rationale: Gender refers to the biological and social characteristics that define male and female identities. It is not a medical condition, emotional state, or psychological term. The term 'gender' specifically relates to the sex of an individual, distinguishing between traits associated with being male or female. Therefore, the correct answer is B.

Correct Answer: B

Rationale: The correct answer is 'never would have happened.' This choice correctly expresses the hypothetical outcome that did not occur due to the motorist obeying the speed limit sign. The phrase 'never would have happened' is the most suitable option in this context as it indicates a past event that was prevented by following a certain condition. Choice A ('could have happened') is incorrect as it does not convey the same level of certainty and definiteness as 'never would have happened.' Choice C ('wouldn't have occurred') is close but lacks the emphasis on the event not taking place at all. Choice D ('could happen') is in the present tense and does not fit the context of a past hypothetical situation.