please help me on these.

A taxpayer who fails to file and fails to pay taxes is subject to a combined 5% monthly penalty on the underpayment. O True O FalseIdentify which of the following statements is true. O A. If a taxpayer omits from gross income an amount in excess of 25% of the gross income shown on his return, the statute of limitations is five years. O B. The statute of limitations limits the time during which a taxpayer may claim a refund of an overpayment of tax. O C. The statute of limitations, which stipulates the time frame within which either the government or the taxpayer may request a redetermination of tax due, usually expires six years after the date on which the return is filed. O D. All of the above are true.Identify which of the following statements is true. O A. All estates with gross income of at least $500 must file an income tax return. O B. Trusts are required to make estimated tax payments. O C. All trusts and estates must use a calendar year - end. O D. All of the above are false