Which of the following points is the center of the conic section 4x2+9y2−16x+54y+61=04x^2 + 9y^2 - 16x + 54y + 61 = 04x2+9y2−16x+54y+61=0?
(2,−3)(2, -3)(2,−3)
(−2,3)(-2, 3)(−2,3)
(4,9)(4, 9)(4,9)
(1,−3)(1, -3)(1,−3)