You purchase a home and take on a $600k mortgage. The amortization period of the loan is 30 years, and the first term is fixed rate for 5 years during which time you are required to make monthly payments at 4% APR compounded semi-annually. On the first-year anniversary you make an additional $50,000 payment. Find the balance owing immediately following the second anniversary of your payments. The balance is within $200 of which of the following? Question 5 options:

524,828

525,228

525,628

526,028

None of the above