81. What type of mortgage loan is likely to be tied to a publicly available index that is mutually acceptable to the lender and the borrower?

Answer: C

Explanation:

Adjustable rate mortgage.

An adjustable rate mortgage (ARM) is typically tied to a publicly available index that both the lender and borrower agree upon, allowing the interest rate to fluctuate based on market conditions.

A) Renegotiable rate mortgage.

A renegotiable rate mortgage generally involves a fixed interest rate that can be renegotiated at set intervals, rather than being tied to a public index. This type of mortgage does not adjust based on market indexes, making it unsuitable for the question's context.

B) Graduated payment mortgage.

A graduated payment mortgage features payments that increase over time but does not tie its interest rates to a publicly available index. Instead, it is structured to accommodate the borrower's expected income growth, which does not align with the concept of market-based fluctuations.

C) Adjustable rate mortgage.

An adjustable rate mortgage is designed to be tied to a publicly available index, such as the LIBOR or Treasury index, which affects the interest rate over time. This characteristic allows for adjustments based on market conditions, making it the correct choice for the question.

D) Freddie Mac.

Freddie Mac is not a type of mortgage but rather a government-sponsored enterprise that provides liquidity in the mortgage market. It does not represent a loan type tied to a publicly available index, thus making it irrelevant to the query.

Conclusion

The adjustable rate mortgage is definitively the correct answer as it directly relates to the concept of being tied to a publicly available index, unlike the other options which either focus on fixed rates or do not represent mortgage types. The other choices fail to meet the criteria of market-based adjustments as described in the question.