If Broca's Area Is Destroyed, Then Speech Production Will Be

Multiple Choice

If Broca's area is destroyed, then speech production will be disturbed. A speech pathologist observed that Jessica's speech was severely disturbed and she was not responding to treatment. The speech pathologist concluded that Jessica probably has brain damage in Broca's area. This conclusion is NOT sound because:

A) the argument involves asserting the consequent.
B) all of the premises in the argument are true.
C) the argument is both valid and the premises are true.
D) left hemisphere damage leads to language problems.