Using Only This Graph Of $f ( x ) = a ( x - h ) ^ { 2 } + k$

Multiple Choice

Using only this graph of $f ( x ) = a ( x - h ) ^ { 2 } + k$ , what are the signs of $h$ and $k$ ?

A) $h$ is positive and $k$ is negative.
B) $h$ is negative and $k$ is positive.
C) Both are positive.
D) Both are negative.