I think it is b the verb tense are constant ask others before you pick ur answer not 100percent sure
I uploaded the answer to a file hosting. Here's link:
tinyurl.com/wpazsebu
Their similarities are, they is they are both languages of signs and symbols which combine to words, sentences, and stories. Their differences is math, uses numbers and english helps you for example, on interviews.
The three basic parts of an essay would be Introduction, Body, and Conclusion. If that it is not an answer choice it is thesis, plot, and conclusion.
I don't know but I hear chapter 9 has pretty juicy info
