A Company Holds an Investment in Corporate Bonds Classified as AFS

A company holds an investment in corporate bonds classified as AFS. At the beginning of 2020, this investment is reported at a value of $4,000,000. Gains of $500,000 have been previously reported, and no impairment losses have been reported. At the end of 2020, the market value of the investment is $2,000,000, and it is determined that the decline in value is due to credit losses.
How is this information reported in the company's 2020 financial statements?

A) $500,000 other comprehensive loss; $1,500,000 loss in income
B) $2,000,000 loss in income; no change in other comprehensive income
C) $2,000,000 other comprehensive loss; not reported in income
D) $1,500,000 other comprehensive loss; not reported in income