Which sequence converges to e2e^2e2?
(1+2/n)n(1+2/n)^n(1+2/n)n
(1+1/n)2n(1+1/n)^{2n}(1+1/n)2n
(1+2/n)n2(1+2/n)^{n^2}(1+2/n)n2
Both a and b