Answer:
Special committee
Explanation:
In the United States Congress, a special committee is a congressional committee that:
The Committee on the Events Surrounding the 2012 Terrorist Attack was created in 2014 to conduct an investigation about these attacks, therefore it was appointed for a special function (a standing committee couldn't have done this since terrorist attacks have not specific jurisdictions), once it completes its work it will no longer exist. Thus, it is clearly an example of Special Committee.