Given the following declaration: int j; int sum = 0; double expenses[15] [8]; Which of the following correctly finds the sum of the elements of the third column of expenses? for (j = 0; j < 14; j++) sum += expenses[j] [3] ; for (j = 0; j < 14; j++) sum += expenses[j] [2]; for (j = 0; j < 8; j++) sum += expenses[j] [7] ; for (j = 0; j < 8; j++) sum += expenses[j] [3] ;