[ Mathematical logic (miscellaneous).]

We are looking for the correct statement. In the notebook, there are one hundred statements written:

1) In this notebook, there is exactly one false statement.
2) In this notebook, there are exactly two false statements.

..

100) In this notebook, there are exactly one hundred false statements.

Which of these statements is true, given that only one is true?
In this notebook, there are 99 false statements ( $100-1=99$ ).