Will mark as brainliest if !
refraction refers to
a. light rays "bouncing off" of an object
b. light being completely absorbed by a medium
c. the bending of light rays when they pass from one medium into another
d. the transmission of light without altering its direction or any other properties

An astronaut on the moon throws a baseball upward. the astronaut is 6 ft, 6 in. tall, and the initial velocity of the ball is 3030 ft per sec. the height s of the ball in feet is given by the equation s equals negative 2.7 t squared plus 30 t plus 6.5s=−2.7t2+30t+6.5, where t is the number of seconds after the ball was thrown. complete parts a and b.