Answer: B. after “cell.”
The pause in this excerpt should be placed after the word "cell," and it is indicated by an em dash (—). An em dash, or long dash, is a punctuation mark that indicates a pause. It is placed where a comma or semicolon would be traditionally used. Em dashes are common in informal writing, but should be limited in more formal texts.
In the 15th and 16th centuries, Europeans wanted to find sea routes to the Far East. Columbus wanted to find a new route to India, China, Japan and the Spice Islands. If he could reach these lands, he would be able to bring back rich cargoes of silks and spices.
Sentence 5 contains a rebuttal to the main argument
This quote to me means that we should accept people how they are, and not try to change them to our benefit, but instead adapt to how they are. I think the author put in this quote because he wanted to tell use how Mars may be different, but we should still accept it, and deal with it, not change it to fit our needs.