How can students benefit by using professional networking sites? it provides them more social interaction with others. it allows students to improve academically. it allows students to display their project to their teachers. teachers could write recommendations for students on these sites.

I’d choose A as the best answer : It provides them more social interaction with others.

Professional Social networking sites are used by almost everyone to collaborate, network, share, and generate content and knowledge. These features are of great importance in the context of education. Professional networking sites allows you to connect and share other ideas with other professionals. They make is easier for students to share their teaching techniques and learn from others as well. Professors are able to connect to their students off campus and create accounts for students where information can easily be accessed.  

hmmm

explanation:

brought all tribes under one rule, created first mongol written language, legal code, strong conquest