Step-by-step explanation: When you are asked to solve an inequality like the one in this problem, your goal is the same as it is when solving equations which is to get x by itself on one side.
In this problem, since x is being multiplied by 3 on the left side of the inequality, to get x by itself, we divide both sides by 3.
On the left side, the 3's cancel and we're left with x. On the right side, 12 divided by 3 is 4 so we have X > 4.
This means that A would be or answer.