Which sentence demonstrates that the author does not have a blind spot?
a. the space programs encourage science-fiction-type projects.
b. yes, space programs are expensive, but the money we spend on these programs will decide our future.
c. this effort us reach across borders to encourage cooperation with other nations.

A blind spot specially in a form of writing able to let the reader give a negative effect to the topic or simply saying its the weak or the questionable point of a paragraph. So in the choices the best answer would be B."Yes, space programs are expensive, but the money we spend on these programs will help decide out future"