Question is on the pic

How many people in the world’s economy work in “system d”?

What happened in the 2000 election of al gore vs bush

Which of the following statements most accurately describes the requirement for the documentation of minors’ assent to participate in research? parents must approve written documentation.documentation is required unless waived by an irb.to protect minors documentation is always required.federal regulations do not require the documentation of minors’ assent.