scientific laws change often. scientific investigations are generally flawed. scientists may interpret data differently. scientists believe experiments should be repeated.
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: Although the scientific method states that conclusions should be based on evidence, scientists do not always agree on the conclusions because
Possibilities:
- scientific laws change often.
- scientific investigations are generally flawed.
- scientists may interpret data differently.
- scientists believe experiments should be repeated.

scientists may interpret data differently.