Northstar Sporting Goods Sells Consumer Goods to Lena for $85

Northstar Sporting Goods sells consumer goods to Lena for $85 and provides a written warranty regarding the quality of the goods. Northstar:

A) must designate the warranty as full or limited.
B) may disclaim any and all implied warranties as long as the disclaimer is conspicuous.
C) may modify the implied warranties.
D) All of these are correct.