27. You are interested in the following stock A and market portfolio. You have done some research and calculate the return for each year as shown below. What is the beta of stock A? (Hint: use financial calculator to determine beta)

Year	Returns on Stock A	Returns on Market (S&P 500)
1	9%	32%
2	10%	-6%
3	-12%	-14%
4	6%	46%

a) Beta of stock A = 0.1910

b) Beta of stock A = 0.5383

c) Beta of stock A = 0.4800

d) Beta of stock A = 0.8927