Jaxson, a 78 y/o male, recently experienced a CVA leading to damage of the border areas between the tissues that are supplied by the anterior, middle, and posterior cerebral arteries. His speech is nonfluent, although his repetition of words and sentences is preserved. All other aspects of Jaxson's language are severely impaired. Jaxson most likely presents with:
A. Global aphasia
B. Transcortical motor aphasia
C. Transcortical sensory aphasia
D. Mixed transcortical aphasia