3. |:0_ Suppose that for the series Eff an it is known that limnqm (1,1 = 2. Which of the following must be true? (Circle your answer). a) 23:1 an. = 2 b) 233:] a\" converges, but not necessarily to 2. c) E an diverges. d) It is not possible to determine whether 2:21 on converges or diverges. 4. Determine whether the following series converges or diverges. Find the sum if the series converges. :36)\