Jose scored 80% on Part A of a math test and 92% on part B of the math test. His total mark on the test was 63. The total possible marks for the test was 75. Which system of equations represents this situation?
a (0.80A + 0.92B = 63 A + B = 75
ь (80A + 92B = 63 A + B = 75
с 0.80A + 0.92B = 75 A+B=63
d (80A + 92B = 75 A+B=63