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# The Number Game

GMAT-EFKAJO

Heidi, Jonathan, and Lass are playing a game. Lass begins with a random $2$-digit number. Using the units digit as the tens digit, Jonathan generates another random $2$-digit number. Heidi then takes the unit digit of Jonathan's number and adds it to the tens digit of Lass's number to form a new $2$-digit number.

If Heidi comes up with the number $2$, which of the following numbers could have been Lass's original number?

A

$21$

B

$31$

C

$41$

D

$42$

E

We need information about Jonathan's number to solve the problem.