Answer:
The correct answer is option D
Step-by-step explanation:
Functional dyspepsia is a nonulcer dyspepsia which can be understood as indigestion, which includes several symptoms in this disorder.
This affects the GI tract of a person and causes discomfort and chronic pain in the stomach without any physical cause or issue. It also causes belching, bloating and nausea.
Thus, the correct answer is option D.