Andrea subtracted 8 from her age, and divided that result by 3. The final answer was 4. How old is Andrea? To solve this problem by working backwards, which process would be correct?a.) Add 4 to 8, and then divide by 3 to get 4 years old.b.) Add 8 to 3, and then multiply by 4 to get 44 years old.c.) Multiply 4 times 3, and then add 8 to get 20 years old.d.) Multiply 4 times 8, and then subtract 3 to get 29 years old