Assume that grade is a variable whose value is a letter grade-- any one of the following letters: 'a', 'b', 'c', 'd', 'e', 'f', 'w', 'i'. assume further that there are the following int variables, declared and already initialized: acount, bcount, ccount, dcount, ecount, fcount, wcount, icount. write a switch statement that increments the appropriate variable (acount, bcount, ccount, etc.) depending on the value of grade. so if grade is 'a' then acount is incremented; if grade is'b' then bcount is incremented, and so on.