A summer camp cookout is planned for the campers and their families. There is room for 525 people. Each adult costs $9, and each camper costs $5. There is a maximum budget of $1,200. Write the system of inequalities to represent this real-world scenario, where x is the number of adults and y is the number of campers.
a) x + y ≤ 525, 5x + 9y ≤ 1200
b) x + y ≤ 1200, 5x + 9y ≤ 525
c) x + y ≤ 525, 9x + 5y ≤ 1200
d) x + y ≤ 1200, 9x + 5y ≤ 525