To find the yield on the loan made by Ace Bank, you need to combine the given interest rate with the additional points. Here's a step-by-step breakdown of how you can determine the yield:
1. Identify the interest rate for the loan. In this case, the interest rate is 2.31%.
2. Identify the additional points associated with the loan, which is 4 points.
3. Add the interest rate and the points together to get the total yield.
[tex]\[
\text{Yield Rate} = \text{Interest Rate} + \text{Points}
\][/tex]
Substituting the given values:
[tex]\[
\text{Yield Rate} = 2.31\% + 4
\][/tex]
4. Perform the calculation to get the yield rate:
[tex]\[
\text{Yield Rate} = 6.31\%
\][/tex]
Hence, the yield on the loan made by Ace Bank will be 6.31%.
Therefore, out of the given options, the correct answer is:
[tex]\[ \boxed{6.31\%} \][/tex]