Ralph owns a building that he is trying to lease. Ralph is a calendar-year, cash-method taxpayer and is trying to evaluate the tax consequences of three different lease arrangements. Under lease 1, the building rents for $670 per month, payable on the first of the next month, and the tenant must make a $670 security deposit that is refunded at the end of the lease. Under lease 2, the building rents for $7,370 per year, payable at the time the lease is signed, but no security deposit is required. Under lease 3, the building rents for $670 per month, payable at the beginning of each month, and the tenant must pay a security deposit of $1,340 that is to be applied toward the rent for the last two months of the lease

a. What amounts are included in Ralphs gross income this year if a tenant signs lease 1 on December 1 and makes timely payments under that lease?

b. What amounts are included in Ralphs gross income this year if the tenant signs lease 2 on December 31 and makes timely payments under that lease?

c. What amounts are included in Ralphs gross income this year if the tenant signs lease 3 on November 30 and makes timely payments under that lease?