10. If the relationship between reaction time and attention span among a sample (n=150) of GA pilots is r=-42, then we may conclude:

a. There is no significant relationship between pilots' reaction time and attention span.

b. Having a long attention span causes a decline in reaction time.

c. If I know a pilot's reaction time, I will have about 16% of the information needed to perfectly predict the pilot's attention span.

d. As pilots' reaction time increases, the more likely their attention span will increase.