Olivia recently bought a house for $455,000 using a 30 year home loan with 5.25% interest rate. She used 15% of the amount towards the downpayment and took loan for the balance amount. How many months sooner she can payoff the entire loan if she decides to make an additional payment of $300 every month?

a.)approximately 78 months

b.) approximately 73 months

c.) approximately 116 months

d.) approximately 88 months