Which of the following is a key reason why international collaborations can be challenging? a. the collaborators may have different disciplinary and cultural backgrounds and practices. b. federal agencies are not permitted to encourage international collaborations. c. international collaboration is rare and is on the decline. d. there are currently no international ethical guidelines for research.

A. The collaborators may have different disciplinary and cultural backgrounds and practices.

Explanation:

One of the key reasons international collaborations can be challenging is because of the cultural and language barriers that the collaborators face. Also, differences in main disciplines or focus field of the collaborators also results in difficulty when conducting research. Communication issues and cross-disciplinary issues are two major reasons for international collaborations difficulties.

c. wright mills's sociological imagination suggest investigating to explain this increase?

so, colonists did not want to pay any taxes.  

colonists did not consider themselves british citizens.  

colonists felt no sense of obligation to britain.  

colonists objected to violations of their natural rights. are the answer choices?