Please help me i need the answer very hard and plz dont guess ty <3

What is the main goal of the world trade organization a. to fight enforce tariffs b. to fight against terrorism c. to encourage trade d. to regulate international investments

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

Population parameters are difficult to calculate due to