Arnie, a college student, purchased a truck in 2011 for $6,000. He used the truck 70% of the time as a distributor for the local newspaper and 30% of the time for personal use. The truck has a five-year recovery period, and he claimed depreciation deductions of $840 in 2011 and $1,344 in 2012. Arnie sells the truck on June 20, 2013, for $3,000.
a. What is the amount of allowable depreciation in 2013?
b. Determine Arnie's realized and recognized gain or loss and its character.