Final answer:
The correct pairing for the effects of anticholinergics is likely D) Suppress; impair, as these drugs reduce sensory perception and hinder memory functions by blocking acetylcholine's action in the brain.
Step-by-step explanation:
The correct pair of words to complete the statement "The anticholinergics suppress sensory perception and impair memory." is B) Suppress; enhance. However, this choice seems to contradict the effects of anticholinergics because they are known to impair, not enhance, memory. Therefore, the most accurate pairing for the effects of anticholinergics would be D) Suppress; impair. Anticholinergic drugs work by blocking the action of acetylcholine in the brain, which leads to decreased sensory perception and impaired cognitive functions, including memory.