A thesis statement is generally the first few sentences of your writing to help get your readers interested in what they'll be reading. So, if your thesis is unclear, they'll be confused about what's going on before anything even happens.
Answer:
i think it will be option A
Answer:
below
Explanation:
This is an essay's format:
1. introductory paragraph comes first
2. The thesis statement comes at the end of the introductory paragraph
3. Body paragraph(s)
4. Conclusion
Is - two billion dollars is a unit, one unit so it is singular and you use the singular verb
think - scientists is a plural, therefore, you must use the plural verb form of think
D, E, F, G I believe are the most logical answers to this