Find the Function Value Indicated for the Function $m ( x ) = - \sqrt { x - 2 }$

Multiple Choice

Find the function value indicated for the function. If necessary, round to two decimal places. If the function value is not a real number and does not exist, state so.
-Evaluate $m ( x ) = - \sqrt { x - 2 }$ for $m ( 27 )$

A) $m ( - 5 )$
B) 5
C) not a real number
D) $- 5$