Which of the following would most directly affect the operations of the digestive system

The
The heart

Explantion:
Decreased blood flow can cause decreased motility in the gut causing nausea, lack of appetite, ineffective digestion and malabsorption of nutrients. Decreased blood flow can also cause stress on the gut and result in gastric ulcer formations.

Answercomposite key;

Iposit c as the correct answerbeing a waitress and managing a restaurant can be different jobs in the same care  this is because the difference between the two is attitude. they can be both jobs or careers, if the attitude of the job-doer is that way. on e can be a manger yet sees it a s a job. the job of waitress can also have an impact on future job prospects thus is important for the career line.