Aselect committee is different from a standing committee because
a select committee includes member of both chambers, while a standing committee includes only members of the house
a select committee is used for bill reconciliation, while a standing committee is used for prosecutions
a select committee must stay in session, while a standing committee goes to recess
a select committee is convened for a specific and temporary purpose, while a standing committee is permanent

a select committee is convened for a specific and temporary purpose, while a standing committee is permanent

Explanation:

A select committee is formed temporarily for particular purposes. It deals with the study of any specific issue. Standing committee is the committee which is formed with the continuation of the government. It is a permanent form of the committee which also conducts investigations.

world bank is the correct answer.

i would say b. research typically uses a variety of sources