Assuming that an AGI limitation does not apply, what amounts of credit for the elderly or the disabled would be permitted in each of the following instances? Allowable Credit a. b A single taxpayer eligible for the credit who receives $1,100 of nontaxable social security benefits Taxpayers filing a joint return for which one taxpayer is eligible for the credit and the taxpayers have received no social security benefits Taxpayers filing a joint return, and both are eligible for the credit and received $3,100 of nontaxable social security benefits 8 of 8 !!