Quickstove ships worldwide, and this is a sample of shipments to the Western United States. Which of the following statements about Quickstove's shipping policy is true?
a. Quantity discounts are not offered on multiple quantities of an item in the same order.
b. Customers are charged sales tax on shipments within Utah and Oregon only.
c. Sales tax is charged on shipments to all states except Utah and Oregon.
d. Sales tax is not charged on shipments to states other than Utah and Oregon.
