Help please

Question 17 1 Point ( x - h )2 Which of the following is true about ellipse with equation in standard form ( y - k ) 2 + = 1, a > b? a2 A The foci are c = va2 - b2 units below and above the center. B The major axis is vertical while the minor axis is horizontal. C The vertices are a units below and above the center. D The covertices are b units below and above the center