Which statement describes a problem with the peer review process in scientific research?

Here are the choices for the said question above:

- It can sometimes reject important new ideas or novel techniques.

- It forces new scientists to meet the same standards that established scientists meet.

- It always requires scientists to have to reanalyze their data.

- It often makes it more difficult to justify a conclusion.

and the best statement that describes the problem is - It forces new scientists to meet the same standards that established scientists meet.