Mr. and Mrs. Udall live in a home that Mrs. Udall inherited from her parents. This year, the Udalls took out a first mortgage on the home. Determine their itemized deduction for interest paid on the mortgage in each of the following cases:
a. The interest payment was $5,830, the average balance of the mortgage was $75,000, and the Udalls used the borrowed funds to buy a recreational vehicle.
b. The interest payment was $10,506, the average balance of the mortgage was $162,000, and the Udalls used the borrowed funds to pay for their daughter's wedding and honeymoon.
c. The interest payment was $10,506, the average balance of the mortgage was $162,000, and the Udalls used the borrowed funds to put a new roof on their home.