This year, Karl had the following capital gains (losses) from the sale of his investments: $6,000 LTCG, $30,000 STCG, ($12,000) LTCL, and ($18,000) STCL. What is the amount and nature of Karl's capital gains and losses? Multiple Choice $6,000 net short-term capital gain. $6,000 net long-term capital loss. $12,000 net short-term capital gain. $6,000 net short-term capital loss. None of the choices are correct.