Help plzz The number of horses occupying stalls at the county fairgrounds can be modeled by the following function, where x represents the number of days since the first of June.
h(x) = -3x^2 + 30x + 225
a h(x) = -3(x + 5)( x - 15)
b h(x) = -3(x + 5)( x - 15)
c h(x) = -3(x - 2)( x - 15)
d h(x) = -3(x + 2)( x - 15)