On March 2,treasury bill expiring on April 20, had a bid discount of 5.80 and ask discount of 5.86.What is the best estimate of risk-free rate as given in the text?

A) 5.86%

B) 5.83%

C) 6.11%

D) 6.14%

E) None of the above

My answer is C.

What would be your answer?

Answer is not provided by the author.