Question 4: [10 pts] Let {an}=1 is a sequence and define sn = ) "ak for all n 2 1. If ) ak = 2, then: k= 1 k=1 DO A ) sk must diverge. B )sk converges to 2. C > sk converges to 0. k=1 k=1 k= 1 D > sk could converge or diverge. E sk must converge, but more information is needed to find its value. k= 1 k=1 Explanation