Three years ago, Adrian purchased 100 shares of stock in X Corp. for $10,000. On December 30 of year 4, Adrian sells the 100 shares for $6,000. (Leave no answers blank. Enter zero if applicable. Loss amounts should be indicated with a minus sign.) a. Assuming Adrian has no other capital gains or losses, how much of the loss is Adrian able to deduct on her year 4 tax return?