State wheter each is a true statement, a fale statement, or an open sentence:
A: the sum of 1 and 1 is the same as the product of 2 and 1
B: the sum of the whole number x and 4 is 4
C: the product of 80 and 1 is the same as the successor of 80
D: if 8 is multiplied by 4, the result is the same as when 4 is multiplied by 8.
E: if 8 is divided by 4, the result is the same as when 4 is divided by 8.