JEE Main 2021 Mathematics question

Let x denote the total number of one-one functions from a set A with 3 elements to a set B with 5 elements and y denote the total number of one-one functions from the set A to the set A × B. Then :

• (A)y = 273x
• (B)2y = 91xCorrect
• (C)y = 91x
• (D)2y = 273x