Pls answer this question for 20 points. Michael uses a blend of dark chocolate and milk chocolate to make the ice cream topping at his restaurant. He needs to buy 100 kg of chocolate in total for his next order. Dark chocolate costs $12per kilogram, milk chocolate costs$10 per kilogram, and he wants to spend $1120 total.
Let d be the number of kilograms of dark chocolate he buys and m be the number of kilograms of milk chocolate he buys.
Which system of equations represents this situation?
a. d+m=100
10d+12m=1120
b. d+m=1120
12d+10m= 100
c. d+m=100
12d+10m=1120
d. d+m=1120
10d+12m=100