Can I please have help?

The answer is C

There are 200+115=315 pieces in total.

315/4 = 78.75. This means, 78 remainder 3.

To make the most even division, the remainder needs to be as small as possible.
78 remainder 3 = 79 remainder -1
So, three people get 79, and one person gets 78. That is the fairest division.

79*3 + 78 = 315