Compound-complex sentences are typically used to express

Compound-complex sentences are typically used to express

b. emphasis and clarity

Explanation:

The reason behind this answer is two: first, they are the best option we have to explain very complicated ideas. Second, they are the best to express long ideas. However just because they are long and complicated ideas doesn't mean they have complicated relationships. Therefor the correct answer is b.

from the political point of view it could be said that the candidate   is an effective speaker because she takes a strong position on the issue. it is an open discussion but probably she is making a presentation and can choose which subjects she wants to address. she is very likely to attain her aim which is to convince voters to accept her proposal.