On March 31, Year 1, Mary Borrowed $200,000 to Buy

On March 31, year 1, Mary borrowed $200,000 to buy her principal residence. Mary paid 3 points to reduce her interest rate from 6 percent to 5 percent. The loan is for a 30-year period. What is Mary's year 1 deduction for her points paid?

A) $50.
B) $150.
C) $4,500.
D) $6,000.