Which one among the following statement is true in the context of the testing of hypotheses?

Q. Which one among the following statement is true in the context of the testing of hypotheses?

1. It is only the alternative hypotheses that can be tested.
2. It is only the null hypotheses that can be tested.
3. Both the alternative and the null hypotheses can be tested.
4. Both the alternative and the null hypotheses cannot be tested.

Answer: It is only the null hypothesis that can be tested.