Ok help with both questions

The primary purpose of a certificate of confidentiality is to: allow law enforcement to investigate abuse cases.protect researchers from disclosing conflicts of interest.prevent subjects from knowing the purpose of a study.protect identifiable research information from compelled disclosure.

During the period from 1865 to 1898 how did the political/economic elite contain the demands of farmers and laborers for economic justice

What were the anti-federalists against? a. the views of patrick henry b. ratification of the constitution without a bill of rights c. the declaration of independence from great britain d. a weak central government