ANSWER ASAP PLEASE (will upvote)

After graduating from UC Berkeley in 2018 , several friends decided to buy a "fixer-upper" house in Orinda, California. They expected to achieve a significant appreciation on their investment after they remodeled and sold the house. At that time, they could finance the acquisition with either: (A) a 30-year fully amortizing fixed rate mortgage loan payable monthly from Bank of the West with a five percent down payment and a 4.0% annual interest rate, or (B) a 30-year fully amortizing fixed rate mortgage loan payable monthly from First Republic Bank with a 10% down payment and a 3.75% annual interest rate. What would be the effective annual interest rate on the additional amount borrowed if they took the loan from Bank of the West? \begin{tabular}{l} 8.5% \\ 5.0% \\ \hline 4.0% \\ \hline 8.0% \end{tabular}