Which russian leader freed the serfs and expedited russian industrialization?

a. alexander ii
b. count witte
c. ivan the great
d. yury of tver

Identify the example of when situation and time are key to assessing risk of harm in a research study: a study on the efficacy of a behavioral intervention for smoking cessation involves both adults and teenagersasking women if they have had an abortionresearch on the prevalence of hiv-infected individuals in communitiesa survey about sexually transmitted diseases