Kate has gone up to the chalkboard to do math problems 5 more times than Andre. Kate has gone up 11 times. Which equation represents this situation?
A- a - 11 = 5
B- 5a = 11
C- a - 5 = 11
D- a + 5 = 11
A- a - 11 = 5
B- 5a = 11
C- a - 5 = 11
D- a + 5 = 11