The Values of C for Which $y = c$ Is a Constant Solution Of

Multiple Choice

The values of c for which $y = c$ is a constant solution of $y ^ { \prime } = y ^ { 2 } + 3 y - 4$ are

A) 1 and 4
B) $- 1$ and $- 3$
C) 1 and $- 4$
D) $- 1$ and 3
E) 1 and 3