While doing research you apply sources. You use these sources for your main research idea. The sources are the previous works that have been done in this field. Complete Research means to confirm facts, reaffirm the previously done work, support theorems or develop new ideas. Therefore, the answer is verify.
Making sure that the speaker is speaking in 1st person (I, me, my)
A. It has to be A. C can be considered, but it's A.
Pets should be not be able to be allowed in schools because it can be an distraction in class because students need to be able to focus so they can pass. It won’t only be a distraction to the animal owner but to other students because they will be looking at animals instead of focusing, all though animals are adorable animals are supposed to stay home and not come to school. As it is school is hard to focus in!
Hope this helps, fix my grammar:)
The correct answer would be the fourth one. If you read it aloud, it sounds about right.
