Why is it important that your evidence should be provable and not just based on your opinion?

It is important that evidence should be able to be proved because itis based on facts. An opinion can be seen as a hypothesis on waht you think is going to happen but, evidence must be able to be proved through places with correct information or in a lab. If I said " iphones are the better types of phone" that is based on an opinion. If this can be proved and is backed up with evidence. Then it can be proved that iphones are the better phone. (nothing wrong with any phone it was just the closest object to my left)

Explanation:

samuel gompers was an extremely important person in the american labor movement, being him an employee all his life he devoted himself to fight for the rights of his pairs, he believed they all had the right to have better thing and that they all were working for them but the factory workers were greedy, ambitions and socialist people for him who he didn't have a good concept of.

he gave so many speeches and led so many strikes and protest to fight for equality which he considered employers didn't want to accept, so he had an absolutely negative opinion of them.

i would pick a. i think this is more of a personal question though.