Four years ago, you had arranged for an eight-year bank loan for $300,000 at an interest rate of 10% p.a. with interest compounded semi-annually. The loan was being repaid in equal semi-annual instalments and the payments were being made at the end of each period. The total amount still owed the bank today is closest to:

Group of answer choices $98,155. $178,908. $221,448. $100,356.