Which of these is least likely to be an IRS scam? a. phone call from the IRS that demands payment of a deficiency immediately or they will call the local authorities b. text message from the IRS stating to click on a link to confirm your mailing address to send a pending tax refund c. email from the IRS asking to reply to confirm your full legal name and social security number d. letter with IRS letterhead asserting a deficiency in a prior year and requesting you make payment with a prepaid gift card e. letter with IRS letterhead asserting a deficiency in a prior year and requesting you make payment with a check to the U.S. Treasury