Find the Absolute Extremum Within the Specified Domain $f(x)=x^{2}-4 ;[-1,2]$ A) $(2,0)$

Multiple Choice

Find the absolute extremum within the specified domain.
-Maximum of $f(x) =x^{2}-4 ;[-1,2]$

A) $(2,0)$
B) $(-2,0)$
C) $(-1,3)$
D) $(1,-3)$