Answer:
Because with a novel, more people will read it and consider his ideas, instead of going straight to the government he tried changing the societies opinions.
Explanation:
A. Because the source would have a wide spectrum of information and would lead you to other sources for more specific information.
The sentence with proper subject-verb agreement is B. The student as well as the teacher want to go to the museum. In this sentence, the subject is what we call a compound subject, meaning that the verb refers and agrees with more than just one singular word. The compound subject is "student" and "teacher" and they are connected by "as well as", which functions as a coordinating conjunction would. That's why the verb should conjugate in its plural form.
Option A is incorrect because the structure inside parentheses is not related to the verb and does not influence its conjugation. Options C and D have a verb in the singular form for a compound subject - that would demand a plural conjugation.
They are probably the most important document in understanding history. Without writing we would have a difficult time understanding archeological data. Also journals give great detail about wars and other major conflicts that would otherwise be unknown to historians.