SubArea: Introduction to sequencesLevel: BProject ID: 2010010301Source Problem: 2010010302Accepted: 0Clonable: 1Easy: 0Which of the following sequences given by the formula for the nth term is not decreasing?(logn)n=1∞(4−n2)n=1∞(2n+1n)n=1∞(12n)n=1∞