Problem 7-53 (LO 7-2) [The following information applies to the questions displayed below.) Christina, who is single, purchased 280 shares of Apple Inc. stock several years ago for $14,840. During her year-end tax planning, she decided to sell 140 shares of Apple for $6,720 on December 30. However, two weeks later, Apple introduced its latest iPhone, and she decided that she should buy the 140 shares (cost of $7,000) of Apple back before prices skyrocket. (Leave no answers blank. Enter zero if applicable.) Problem 7-53 Part-a a. What is Christina's deductible loss on the sale of 140 shares? What is her basis in the 140 new shares? Deductible loss Basis