24. Convert the statement into if-then form. A number is divisible by 4 if it is divisible by 8. a. If it is a number, then it is divisible by 4 and 8. b. If it is divisible by 4 and 8, then it is a number. c. If a number is divisible by 4, then it is divisible by 8. d. If a number is divisible by 8, then it is divisible by 4