To evaluate the expression \( 25 + (− 13) \), we simply perform the addition:
\[ 25 + (-13) = 25 - 13 \]
Calculating this gives:
\[ 25 - 13 = 12 \]
So, the value of the expression is \( 12 \).
It seems like none of the provided response options reflect this correct value. Please double-check the options or the expression for any discrepancies.