What is the inverse of the following conditional statement?
"If a number is divisible by ten, then the last digit is zero."
O If the last digit in a number is not zero, then the number is not divisible by ten.
O If a number is divisible by ten, then the last digit is zero.
O If the last digit in a number is zero, then the number is divisible by ten.
O If a number is not divisible by ten, then the last digit in the number is not zero.