Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the option that best fits each of the numbered blanks.

Although couples will rarely believe it, scientific factors have a lot to do with falling in love. Research has shown that scent, (6)_________, plays an important role in attraction. Other experiments have demonstrated that love is caused by combinations of chemicals in the brain. Furthermore, New York psychologist Arthur Aron applied the principles of science to demonstrate that the process of falling in love (7)_________.

Some scientists claim that we take between ninety seconds and four minutes to decide if we fancy someone. However, the leap from being attracted to someone to falling in love with them is a big one, and Aron wanted to find out if the closeness associated with feelings of being in love could be created artificially.

Aron produced a paper that included 36 questions designed to encourage intimacy if couples answered them together. (8)________.  They covered many personal opinions and experiences; for example, "Would you like to be famous?", "What does friendship mean to you?" and "When did you last cry in front of another person?" After answering the questions together, (9)_________.

Aron tested his questions on pairs of strangers and then asked them to stare at each other. All of the participants reported feeling close to their partners. (10)_________. So if you're keen on someone and would like to get closer to them, it would seem that Aron's questions could help you achieve your objective.