Any person who sells or distributes any Class I or Class II refrigerant, in a $\_\_\_\_\_\_\_\_\_\_,$ must verify that the purchaser is properly trained, that the purchaser is $609$ Certified, and must retain a record of the purchase.

A$)$ Container holding more than $20$ Pounds

B$)$ Container holding less than $20$ Pounds

C$)$ Container holding $20$ Pounds

D$)$ Approved disposable container