Which equation can you use to solve this problem?

you are 412412 feet tall.
you must be 55 feet tall to ride on a roller coaster.
how much more do you need to grow in order to ride the roller coaster?

a 5 +5 + amount you need to grow =412=412

b amount you need to grow =412+5=412+5

c 5−92=5-92= amount you need to grow

d 52−42=52-42= amount you need to grow