There are 12 colored blocks of equal size in a bag . 4 of these blocks are blue , 5 are green , and 3 are red . if a block is removed from the bag at random , what is the probability that it will be b

There are 12 colored blocks of equal size in a bag . 4 of these blocks are blue , 5 are green , and 3 are red . if a block is removed from the bag at random , what is the probability that it will be blue ?

A. 1/2

B. 5/12

C. 1/3

D. 1/4