For each of the following events, determine the amount of freight paid by Cycle Parts House. Also indicate whether the freight is classified as a product or period cost.
a. Purchased merchandise with costs of $500, FOB shipping point.
b. Sold merchandise to a customer. Freight costs were $800, FOB shipping point.
c. Purchased inventory with freight costs of $1,400, FOB destination.
d. Shipped merchandise to customers with freight costs of $300, FOB destination.