If you need to answer those questions then read the book again then answer the questions. What helps me is to reread the page or passage again
Back then women couldn't be actors
Asteroids offer a source of volatiles and an extraordinarily rich supply of minerals that can be exploited for the exploration and colonization of our solar system in the twenty-first century. Asteroids represent the bits and pieces left over from the process that formed the inner planets, including Earth.
The answer isn’t b. It is a because it should say are instead of is
