The X stocks return relationship with the stock index is given by its correlation co efficientbeing 0.8.what is the percentage of variation explained by the index ?

The X stocks return relationship with the stock index is given by its

1.	The X stocks return relationship with the stock index is given by its correlation co efficientbeing 0.8.what is the percentage of variation explained by the index ?
A.	80%
B.	60%
C.	64%
D.	20%
Answer» D. 20%