The Difference Between Tying and Bundling in Pricingstrategies Is That

The difference between tying and bundling in pricingstrategies is that:

A) they both are strategies that firms use to maximize profit.
B) tying does not require the purchase of both goods, but bundling does.
C) tying involves the combination of goods that are complements, whereas bundling involves the combination of
Substitutes.
D) tying does not lead to as much profit as bundling does.