Solve the Problem $x ^ { 2 } + y ^ { 2 } + 2 x - 4 y - 4 = 0$

Multiple Choice

Solve the problem.
-Find the standard form of the equation of the circle. Assume that the center has integer coordinates and the radius is an integer.

A) $x ^ { 2 } + y ^ { 2 } + 2 x - 4 y - 4 = 0$
B) $( x + 1 ) ^ { 2 } + ( y - 2 ) ^ { 2 } = 9$
C) $x ^ { 2 } + y ^ { 2 } - 2 x + 4 y - 4 = 0$
D) $( x - 1 ) ^ { 2 } + ( y + 2 ) ^ { 2 } = 9$