Which of the following for-loop control headers results in equivalent numbers of iterations:

1) for (int q = 1; q <= 100; ++q)
2) for (int q = 100; q >= 0; --q)
3) for (int q = 99; q > 0; q -= 9)
4) for (int q = 990; q > 0; q -= 90)

a) 1) and 2)
b) 3) and 4)
c) 1) and 2) have equivalent iterations and 3 and 4 have equivalent iterations
d) None of the loops have equivalent iterations

b) 3) and 4)