During the last 4 months, the return on a stock and the return on the S&P market index was as follows.

Stock Market

10% 12%

-20% -12%

6% 2%

4% -2%

Rounded to the nearest hundredth, the correlation between the monthly return on the stock and the S&P market index is:

a. 0.60

b. 0.70

c. 0.80

d. 0.90

e. None of the above