Step 1: Understanding the Concept:
Parasympathetic nervous system affects the intestine.
It has specific effects on motility.
Step 2: Key Formula or Approach:
No specific formula.
Need to understand autonomic effects on intestine.
Step 3: Detailed Explanation:
Parasympathetic stimuli raise the resting membrane potential (RMP).
This increases intestinal motility.
Sympathetic stimuli have the opposite effect.
Thus, parasympathetic stimuli raise RMP and increase motility.
Step 4: Final Answer:
Parasympathetic stimuli raise RMP and increase motility.
Hence, the correct option is (D).