Answer: A. A number is an integer
Explanation:
When we write a statement such as “If P then Q” we should note that the statement means that anytime P is true, it also means that Q must also be true.
The statement P is what we refer to as a hypothesis of the conditional statement, while we refer to the statement Q as conclusion of a conditional statement.
In the above example, the hypothesis if the conditional will be "a number is an integer" while the conclusion will be "it is either positive or negative".