Deykin & Buka (1994) studied the trauma histories of chemically dependent adolescents. For those having a sexual abuse history, 14 had attempted suicide, while 9 had not. For those not having a sexual abuse history, 49 had attempted suicide, while 149 had not. Calculate the relative risk of suicide attempt among those who had been sexually abused. Hint: start with a 2x2 table. a. 0.21 b. 0.41 c. 2.46 d. 4.73