The table represents a quadratic function C(t).


t C(t)
−2 1
−1 4
0 5
1 4
2 1

What is the equation of C(t)?
C(t) = −(t − 5)2
C(t) = (t − 5)2
C(t) = −t2 + 5
C(t) = t2 + 5