The statement that "if the taxpayer obtained a 4 month filing extension, he can make the annual contribution up to the extension date" is an untrue statement about an Individual Retirement Account.
An Individual Retirement Account refers to a saving account that allows workers to save their money for retirement in a tax-advantaged way.
The true statement about the Individual Retirement Account includes:
Therefore, the Option C is correct.
Read more about Individual Retirement Account
brainly.com/question/25806240