An Example of a Tying Arrangement Is

An example of a tying arrangement is

A) a restaurant offering both Pepsi and Coca-Cola products.
B) a car manufacturer installing expensive onboard GPS/navigation systems in all the cars it sells.
C) a landlord offering free rent for the first month when a tenant signs a one-year lease.
D) two companies competing on price.
E) a coffee shop offering customers the option of having cream with their coffee for an extra 25 cents.