The Price Charged for Access to an Uncongested,excludable Non- Rivalrous

The price charged for access to an uncongested,excludable non- rivalrous good should be _ because _ .

A) positive; more than one person can consume this good at the same time
B) positive; marginal cost and marginal benefit for this good are both positive
C) zero; the marginal benefit of the last unit consumed is zero
D) zero; it is inefficient to exclude people from consuming this good once it has been supplied
E) positive; consumers receive a positive marginal benefit from consuming the good