Use the Following Information for Questions

Multiple Choice

Use the following information for questions:
Is there a relationship between the color of one's eyes and the comparative lengths of one's index and ring fingers? Students were asked "which finger is longer: your index finger or your ring finger? Or are they the same?" They also reported the color of their eyes (blue, brown, green, or hazel) . The analysis of the results is given below.
-What are the degrees of freedom for this test?

A) 2
B) 3
C) 6
D) 12