Guests will be able to meet chef Katrina Wagner as she _______ desserts at 4:00 P.M today

in the hotel dinig room

1). prepare

2). prepares

답이 2번이라는데 왜 2번인지 궁금 합니다.

단순히 she 가 3인칭 단수라서 저걸 맞춰준건가요