In a recent study of Colorado workers who were recently layed off, researchers found that after being layed off the majority of workers increased...

In a recent study of Colorado workers who were recently layed off, researchers found that after being layed off the majority of workers increased their use of marijuana. To an economist this means marijuana is :

1 - a normal good.

2 - in limited supply.

3 - there is not enough information to make this determination.

4- an inferior good