Mood....if it is included in your options
Here are the answers to the given question above.
The given word is "begin". The present participle would be beginning. The past form is began, and the past participle is begun. The word begin is one of the irregular verbs. Hope this answers your question. Have a great day!
The correct answer is C. The evidence textual offers the information to build the main idea. It also means that they are connected but they are different. The main idea has no sense without textual evidence. So, The main idea became the main idea because of the lack of textual evidence or the lack of pieces of information for that.
Your answer should be WHO.
Think of it like this: You wouldn't say "The boy it (a variant of 'which')", because it simply just sounds odd. Instead, you're wired to think "The boy, he (an unknown name, so it would be 'who')".