You have to find the difference between 4 1/2 and 1 7/8, in other words subtract those. MAKE SURE YOU SUBTRACT 4 1/2 MINUS 1 7/8, IF YOU DO IT THE OTHER WAY AROUND, IT WILL IMPACT YOUR ANSWER.
In order to subtract correctly, you have to make them common denominators.
CORRECT ANSWER- B= 2 5/8