please answer fast, will upvote!

21 Sandy belongs to a defined benefit pension plan that will entitle her to 2% of her career average earnings for each year of service. If Sally earns $30,000, and her career average earnings over 7 years are $26,000, what will be Sally's pension adjustment for her year of service? a) $3,640 b) $3,680 c) $4,400 od) $4,800