I am going to assume that "after the Dark Ages" is underlined. If so, the correct answer is C. It cannot be any of the "clauses" since it isn't a clause - there is no verb present, so it must be a phrase. It is not an "adjective", since there is no noun which it modifies, but a verb "flourished". Therefore the correct answer has to be C, that is the only available option here.
Answer:
Some people do risky something because them get benefits from it like get strong and beautiful
some to do it to get money
Answer:
Maathai identified the link between environmental degradation and poverty in Kenya and sought to remedy the two issues simultaneously. The rate of deforestation in Kenya yielded landslides, frequent droughts, soil erosion, and the loss of vital resources to communities.
Answer:
reaching the finals is the dangling modifier