Which of the following calls the function Sum by passing in two timehm structs (t1 and t2) and storing the result in a timehm struct t3?

Select one:

a. t3 = timehm.Sum(t1, t2);

b. t3 = timehm->Sum(t1, t2);

c. timehm = Sum(timehm, timehm);

d. t3 = Sum(t1, t2);