Working backward from data on marketable securities transaction. (Adapted from a problem by S. A. Zelf.) On December 12. Year 2. Canning had purchased 2,000 shares of Werther. By December 31. the market price of these shares had dropped by $1,000. On March 2. Year 3. Canning sold the 2.000 shares for $17,000 and reported a realized gain on the transaction of $4,000.

a. What was the original cost of these securities if Canning had accounted for them as trading securities?

b. What was the original cost of these securities if Canning had accounted for them as securities available for sale?(Appendix)