What do the underlined sentences explain about Dr. Bjork's idea?

According to a report in The New York Times, Dr. Bjork believes that we unconsciously connect what we are studying with details from our surroundings, such as wall colors or background noises. These mental connections help us recall the information afterwards.

Your brain creates a link between the things that you are studying and _________. When you _________ where you studied, you also recall what you studied.

Options for blank one
a. why connections happen
b. who is in the newspaper
c. what is around you

Options for blank two
a. remember details about
b. pay little attention to
c. find information on​