NEED HELP ASAP!!

5. Which equation represents a parabola with focus (2 , 6) and
directrix y = 2?
a. y + 4 = 1)(x - 2)
b. y - 4 = {(x - 2)2
c. y+6= -(x - 2)2
y-6 = - )(x+2)
sorry something is wrong with my camera

Kayla wants to find the width, ab, of a river. she walks along the edge of the river 65 ft and marks point c. then she walks 25 ft further and marks point d. she turns 90° and walks until her location, point a, and point c are collinear. she marks point e at this location, as shown. (a) can kayla conclude that δ and δ are similar? why or why not? (b) suppose de = 15 ft. what can kayla conclude about the width of the river?