On December 12, 2013, Canning purchased 2,000 shares of Werther. By December 31, the market price of these shares had dropped by $1,000. On March 2, 2014, Canning sold the 2,000 shares for $18,000 and reported a realized gain on the transaction of $4,000.
a. What was the acquisition cost of these securities if Canning had accounted for them as trading securities?
b. What was the acquisition cost of these securities if Canning had accounted for them as available-for-sale securities?