Correct Answer: B

Rationale: The correct answer is B: 'Ordinary.' Banal refers to something that is common, unoriginal, or lacking in originality. Choices A, C, and D are incorrect because banal does not mean interesting, boring, or creative; it specifically conveys the idea of being mundane or lacking in freshness.

Correct Answer: B

Rationale: The correct answer is B: 'Misgivings'. Trepidation is defined as a feeling of fear or anxiety about something that may happen. Choice A ('Fear') is too broad and does not capture the specific sense of unease that trepidation conveys. Choice C ('Confidence') is the opposite of what trepidation represents. Choice D ('Doubt') is related to uncertainty but does not fully encapsulate the sense of fear and anxiety associated with trepidation.

Correct Answer: B

Rationale: The correct sentence structure is 'The cat is sleeping on the mat.' This is a complete and grammatically correct sentence following a standard subject-verb-object structure. 'The cat' is the subject, 'is sleeping' is the verb, and 'on the mat' is the prepositional phrase describing where the action is taking place. Choices A, C, and D are incorrect. Option A is a sentence fragment lacking a verb; option C is a dependent clause lacking a main clause, and option D has a subject-verb inversion making it awkward and incorrect.

Correct Answer: C

Rationale: The term 'invasive' refers to a procedure that involves entering the body, usually with a medical instrument or device. In the context provided, the doctor wants to try other non-invasive or less invasive options before resorting to an invasive procedure. 'Experimental' means untested or not yet proven to be effective, which aligns with the idea of exploring alternative methods before considering a more invasive approach. Choices A, B, and D are incorrect because they do not relate to the context of trying alternative procedures that are different from invasive ones.

Correct Answer: B

Rationale: Hydration refers to the maintenance of body fluids. Choice A is incorrect as it describes the opposite process, dehydration. Choice C is incorrect as it focuses on the result of inadequate hydration rather than the concept itself. Choice D is incorrect as it does not accurately define hydration but rather implies removing fluids.