Answer:
D) Anticompetitive behavior
Step-by-step explanation:
Venus LLC is using or abusing of its market power to try to force its customers to buy its products in bundles. When a customer is forced to buy a product he/she doesn't want in order to purchase the product they are interested in is called horizontal tying. E.g. you want to buy a TV and you must also buy a subscription to a cable operator.
In this case, even the companies that manufacture the complementary products are being pressured to carry on this unethical practice. Sometimes horizontal tying can be considered illegal, but not always. It depends on the specific details of each case.