Sam buys so shares of XYZ, Inc. for $10,000. On December 15, 2019, he sells all of these shares for $7,000 a $3,000 loss). On January 10, 2020, he buys another 500 shares of identical XYZ stock for $8,000. What is Sam's basts in the XYZ stock purchased on January 10, 20207 A. 58,000 B. 510,000 C. $11,000 D. $7,000 Open Book Exam