Which of the following for-loop control headers result in equivalent numbers of iteration? 1) for (int q=1: q0;q-=9) 4) for (int q=990; q>0; q-=90) Select one: a. 3) and 4) b. 1) and 2) have equivalent iterations and 3) and 4) have equivalent iterations c. none of the loops have equivalent iterations d. 1) and 2)