Below Is a Segment of a Cell's Collection of Biochemical

Below is a segment of a cell's collection of biochemical pathways. M is a product of one series of these reactions. It is also a regulatory molecule. Look at the pathway below and indicate the position(s) at which M is most likely to act as a feedback inhibitor when its concentration gets too high.

A) Positions 1, 2, 8
B) Positions 4, 5, 7
C) Positions 1, 2, 3
D) Positions 8, 9, 10