The correct option is B It gets stored in the form of high energy chemical intermediates i.e., ATP, NADH and FADH2
During the break down of respiratory substrates within a cell, all the contained energy is not released free into the cell, or in a single step. Rather, it is released in a series of slow, stepwise, enzyme controlled reactions, and it is trapped as chemical energy in the form of ATP, NADH and FADH2.