Find the Function Value $f ( x ) = 2 ^ { x }$

Multiple Choice

Find the function value. If the result is irrational, round your answer to the nearest thousandth.
-Let $f ( x ) = 2 ^ { x }$ . Find $f ( 2.49 )$ .

A) $11.236$
B) $4.98$
C) $5.618$
D) $8.427$