After experiencing a stroke, Marissa began having trouble with her speech. Though she can understand what others say to her, she has a limited productive vocabulary, cannot properly use syntax and grammar, and her speech is halting and effortful. Which of these diagnoses best describe Marissa?
A. Broca's aphasia
B. Wernicke's aphasia
C. Both Broca's and Wernicke's aphasias
D. Neither Broca's nor Wernicke's aphasia