Sentence two is correct for sure, and I think the last one is correct also, I'm not 100% sure though for the last one.
There are no sentences to fix :/
C. It is objective
It offers no bias or opinion, just facts.
Hope this helps!
alot of learning of new things to children and harworking
It might be said that in order to dissect a persuasive writing the writer should B( write about the think arguments, they will be the starting point of every argument later on developed. To dissect a text , it cannot be ignored or changed into other topic, on the contrary, it should be focus on only one text and each part of the text should be identified.