On a coordinate plane, AABC has vertices at A(3, 6), B(12, 6), and C(12, 1). Which statements are true? Select all that apply. A. AABC is a right triangle. B. AABC is an equilateral triangle. C. AABC is an isosceles triangle. D. AABC is a scalene triangle. E. F. ZA and ZC are complementary. ZA and ZC are supplementary.