Dear Experts,

Please certify the answers which are given by students if the answer to the question is correct instead of typing the same answer to the question.

Dear Student

We experts have to follow certain predefined set of rules and regulations.Besides, we do thumbs up the answer which are 100% correct. If some information is missing in the solution,we have to post new answer. 
At Meritnation, we try our best to give the explanation of solution in detailed way which somehow lacks in the answer posted by students. 
If a student has posted complete and correct solution, we do thumbs up that answer