For this one, the answer would be B.
I always see which one will solve the first section of the table and most of the time you can eliminate one or more of the answers.
on A, 3x, that can not solve the first one on the table, C can solve the first one, but not the second or the third, and the last one 2x-1, can not solve any of them.
Based on all of that B.
