The diagram illustrates the steps in a process that occurs in the cells of many organisms.

based on the diagram, the dotted line most likely

a. pyruvic acid
b. glucose
c. nadh and fadh2
d. acetyl coa

The dotted line most likely represent  C NADH and FADH2

Explanation:

NADH is a reducing agent formed during glycolysis and TCA cycle. FADH2 also act as electron donor or reducing equivalent generated only during TCA cycle.

        NADH and FADH2 are reduced form of coenzyme NAD+  and FAD. NADH and FADH2 formed during glycolysis or TCA cycle, enters into the electron transport chain(ETC) to perform oxidative phosphorylation that deals with reduction of oxygen(O2) to water(H2O) along with the formation of energy in form of ATP.

the truman doctrine was an american foreign policy whose stated purpose was to counter soviet geopolitical expansion during the cold war. it was announced to congress by president harry s. truman on march 12, 1947, and further developed on july 12, 1948, when he pledged to contain threats to greece and turkey.