The correct term to indicate the inability to speak following a stroke is:
Option B: aphasia
Aphasia is a communication disorder that affects a person's ability to process and use language, which can occur after a cerebrovascular accident (stroke). Dysphasia (Option C) is often used interchangeably with aphasia but generally refers to a milder form of speech and language impairment. Anoxia (Option A) refers to a lack of oxygen, and dyslexia (Option D) relates to difficulties with reading.