Ask. com would best be categorized as what kind of research tool?

Ask.com can be considered a search engine.
As a search engine, it is a software you would use in order to search for information, as the name itself says. You want to find out something, and then you go to Ask.com in order to find that particular piece of information, which is the purpose of search engines, such as Google, Bing, Yahoo!, or Ask.com.

You can drink laxative, or  do this exercise when you are sitting in the bathroom on the toilet. to relieve  constipation  fast or in about 1 minute, pinch your nose after your usual exhalation. start holding your breath. but do not mouth breath during this just hold your breath. 

Ibelieve your answer would be answer choice a