Nate, a single taxpayer, sold two securities in 2021: MASH KMZ Purchased Sold 1-1-2020 5-10-2021 12-2-2020 9-22-2021 Sales Price Basis $12,000 $4,000 $10,000 $5,000 Nate's only other income is his $100,000 salary. What is the additional tax resulting from the above sales? A) $60 B) $150 C) $300 D) $240