Q. State whether the following statements are true or false.
a. The difference between two integers can never be zero.
b. The sum of a positive integer and a negative integer is always a negative integer.
c. The absolute value of an integer is always greater than or equal to the value of the integer.
d. The value of the sum of two integers is always greater than the value of their difference.
e. The value of the product of two integers is always greater than the value of their sum.
f. If four negative integers and four positive integers are multiplied together, the sign of the resulting integer is positive.