4) Marla is jumping rope in her school's jump-a-thon to raise money for the school library.
 Marla's parents pledge $0.25 for each time Marla jumps rope and write a check for $63.25. This
 situation is modeled by the equation 0.25c = 63.25, where c represents the number of times that
 Marla jumps rope in the jump-a-thon. What is the value of c in the equation?
 A. 16
 B. 64
 C. 63
 D. 253