In a One-Period Binomial Model, Assume That the Current Stock

Multiple Choice

In a one-period binomial model, assume that the current stock price is $100, and that it will rise to $115 or fall to $80 after three months. If risk-free investment has a gross return of 1.005 per three month time-step, what is the best replicating portfolio of one hundred 101-strike three-month put options from the following options?

A) Short 60 shares of stock and long 69 units of $1 bonds.
B) Short 65 shares of stock and long 70 units of $1 bonds.
C) Short 65 shares of stock and short 69 units of $1 bonds.
D) Short 65 shares of stock and short 70 units of $1 bonds.