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! Required information Problem 7-53 (LO 7-2) (Algo) [The following information applies to the questions displayed below.) Christina, who is single purchased 360 shares of Apple Inc. stock several years ago for $17640. During her year-end tax planning, she decided to sell 180 shares of Apple for $7920 on December 30. However, two weeks later, Apple introduced its latest iPhone, and she decided that she should buy the 180 shares (cost of $8280) of Apple back before prices skyrocket (Leave no answers blank. Enter zero if applicable.) Problem 7-53 Part-a (Algo) a. What is Christina's deductible loss on the sale of 180 shares? What is her basis in the 180 new shares? Deductible loss Basis