Answer:
D. dysprosody.
Step-by-step explanation:
Dysprosody -
It is a type of disorder, where there are some variations , in the sound , accent , vocal sound , intensity , pauses and melody , is referred to as dysprosody.
The people suffering from this disorder of dysprosody mostly have problem with the pitch and timings of their voice.
Hence, from the question, the correct disorder according to the symptoms given in the question is dysprosody.