You want to know if compound A and compound B interact to affect the synthesis of ATP. With neither A or B there is no synthesis of ATP. When you have just compound A 10 nmoles of ATP are synthesized in one minute. When you have just compound B 30 nmoles of ATP are synthesized in one minute. When you have both compound A and compound B 100 nmoles of ATP are synthesized. From this data you would conclude that a. none of the answers are correct.
b. Compound B is an antagonist for compound A receptors.
c. Compounds A and B act synergistically.
d. Compound A is an antagonist for compound B receptors.
e. Compound A can act on either A receptors or B receptors.