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.