The correct answer is B, object of a preposition. In this sentence, the noun clause is 'what you said', and it comes directly after 'about', which is a preposition. This makes it the object of the preposition 'about'.
I think that the answer is Joyfulness
Communism. She pursued her communist beliefs and included them in her writing, and was also a member of several communist book clubs.
She is also strongly associated with feminism, her fight for equality and women's rights.
“an unobstructed passage to the Atlantic”
This "unobstructed passage to the Atlantic" allows for access "to every quarter of the world." The ability to reach every part of the word allows for Britain to trade with anyone and everyone. It best supports the thesis that Britain's geographic advantages supported trade. The detail "insular [inward looking] situation" makes Britain seem closed off as it is focused on it being inside itself rather than open to others. "Combined with the command of the seas" indicates that Britain has access to the seas, but doesn't show how far reaching it goes. "Secures our territory from invasion" would be better to prove that Britain is well protected and safe from invading forces.
