C- The proper use of a citation format such as MLA can help you avoid plagiarism. Parenthetical citations within the text of your paper let your reader know when you've used information from another source. The parenthetical citation corresponds to a source listed on your works cited page.
The answer is B
Explanation: personally I do not think any other option makes sense!
Answer:
1. English
2. Yes. / Yes.
3. approximately 400 million
4. English and Spanish
5. Yes. / It is easier to speak than to understand.
Explanation: