A Ferris wheel has a radius of 20 m, makes a full rotation in one minute and the axle stands 25 m above the ground. Which equation models the height of a chair of the Ferris wheel that starts at the top, where x is in seconds? (5(x)) + 25 a) y = 10 sin Ob) y= 20 cos S 30 R X- + 25 O c) y - 20 sin(x+1)+25 X+ 30 O d) y - 20 sin(60x+)+25