Rashid retired from active duty in 2020 and began taking disbursements from the traditional thrift savings plan (TSP). His contributions over the years included $12,000 of combat pay. Which of the following statements are True about his distributions?

A)All his distributions are now nontaxable because the contributions were made post-tax.

B)The $12,000 he contributed and the earnings from that money are tax-exempt; his other contributions and earnings are taxable.

C)All his distributions are now taxable because the contributions were made pre-tax.

D)The $12,000 he contributed will not be taxable when it is distributed, but the other contributions and all his earnings are taxable.