What is the role of the nervous system in digestion? A) to provide oxygen
B) to provide electrical signals to initiate peristalsis
C) to provide passage of nutrients throughout the body
D) to provide enzymes

answer is C

well i think it is from process of elimination

you didn't give any options but heres what i can tell you: an inference is likely to change based on additional observations. the latter is something that you have seen or sensed using your sensory organs while the former is like a conclusion out from what you have observed.