The Discussion in This Chapter Summarizing a Study on the Administration

The discussion in this chapter summarizing a study on the administration of marijuana to airline pilots,followed by submitting them to coordination tests 1,4,10,and 24 hours after the administration of marijuana found that the deteriorating effects of the drug completely disappeared after:

A) 1 hour
B) 4 hours
C) 10 hours
D) 24 hours
E) none of the above; the effects of the administration of the marijuana continued to deteriorate the pilots' coordination,even after 24 hours