Which details from the text best support the central idea? Select two options.

Following are the two details which support the main idea of the excerpt;

The above two details support the main idea because as per the excerpts main idea, Sindbad had to go through many hardships to obtain the wealth. Each and every piece of wealth was procured by going through a series of dangerous situations and processes.  

quite an interesting way to teach topic sentences, because the answer to this question is the best definition of a topic sentence that one can present, it is as if answering the questions taught you how to do it, this is some real teaching, it is terribly well-done.

the topic sentence in this paragraph is:

topic sentences writers stay on track and keep a paragraph from becoming an aimless collection of sentences about an idea.

which incidentally tells you what a topic sentence should be.

the answer f probably