You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is Motor aphasia refers to defect in: and explain in detail?
Answer is B (Verbal expression): Motor aphasia also known as expressive aphasia is a disorder of thought and word finding resulting in inadequate verbal expression. * Defect in hearing: Deafness * Defect in understanding: Receptive aphasia / Sensory aphasia * Defect in thought and word finding: Motor / Expressive aphasia * Defect in voice production: Dysphonia * Defect in aiculation: Dysahric