A bakery has 2 machines that bake bread. The first machine can make 50 loaves each hour. The second machine can make 75 loaves each hour. Let h= the number of hours both machines have been making bread. Which THREE of the following expressions can be used to represent the number of loaves of bread that are made in h hours
Answer choices:

A.50h + 75h
B.50 (h+ 25h)
C. 50 + 75h.
D.25h
E. 125h
F.(50 + 75)