The four number machines below change entered numbers according to different rules which machine does not use multiplication to produce the outs number

Answer:
B
Step-by-step explanation:
I got here by process of elimination. In A, each number is multiplied by 3 to get the out number. In C, each number is multiplied by 3 to get the out number. In D, each number is multiplied by 2 to get the out number. Option B is the only one with no clear pattern.