Which Statements Correspond to Amphibolic Pathways? 1

Multiple Choice

Which statements correspond to amphibolic pathways? 1.Anabolic and catabolic reactions are joined through common intermediate.
2) They are shared metabolic pathways.
3) Feedback inhibition can help regulate rates of reactions.
4) Both types of reactions are necessary but do not occur simultaneously.

A) 1 only
B) 1,2,3
C) 1,2,3,4
D) 2,4
E) 2,3,4