Choose the most appropriate word from the options given below to complete the following sentence.
A person suffering from Alzheimer's disease ___________ short-term memory loss.
Options:
(A) experienced
(B) has experienced
(C) is experiencing
(D) experiences
Official Answer Key:
D
Step-by-Step Solution & Explanation
The sentence states a general, ongoing medical fact about the disease (a habitual/characteristic truth), which in English requires the simple present tense, not a completed past action, a single present-perfect event, or a temporary present-continuous action. (A) 'experienced' wrongly implies a completed one-time past event; (B) 'has experienced' implies a completed action with present relevance, not an ongoing characteristic; (C) 'is experiencing' wrongly implies a temporary, currently-in-progress state. Only (D) experiences correctly expresses the general/habitual truth. Answer: (D) experiences.
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