A Subject verb disagreement is when you use the plural-form of a verb for a single form noun: Example: "the fox play" is disagreement because the plural form 'play' is used for singular noun fox.
1.=to take control of someone
2.= to separate an idea or statement into smaller parts in order to make it easier to understand
4. =done with great effort and difficulty
True they can. I am not sure about this
A, because giving only one half of an argument without the counter leads to misinformation
A. However is my best guess none of the other choices seem to fit in very well. Good luck :)