Question

アボカド

こうゆうアがさすものを抜き出す問題は前と後ろどちらの文章に答えがありますか？

Buyology
During an airplane flight, Martin Lindstrom, a marketing expert, read an article about
“neuromarketing” in a magazine. Neuromarketing is a new science that studies the brain's responses
to advertisements and TV commercials. Neuromarketing looks into why people buy things, using
brain scan technology.
Lindstrom became so interested in (ア)this new field that he decided to learn more about it. He
not only reviewed past studies ( イ ) did research himself. With the help of scientists, Lindstrom
scanned the brains of more than 2,000 volunteers from five different countries including Japan.
Eventually, he wrote a book on neuromarketing -Buyology.