MATH
posted by PLEASE HELP ME!!!!!!!!!!!!!!!!!!!!!!!!PLEASE!!!!!! .
The number of students who ride a bike to school is 15 more than the number of students who walk to school. The letter s represents the number of students who walk to school. Which of these shows the number of students who bike to school?
A. s – 15
B. 15 × s
C. s + 15
D. 15 – s

I'll be glad to check your answer, Lulu.