Twitter Is

Twitter is

A) a website where users may create a personal profile, add other users as friends, and exchange comments, photos, videos, and "likes" with them.
B) a website that enables users to send and receive short messages up to 280 characters long.
C) a business-oriented website that lets users post their professional profiles to connect to a network of businesspeople.
D) a video-sharing website in which users can upload, distribute, view, and comment on videos.
E) a website that enables online customers to use their collective buying power to take advantage of deeply discounted prices for a product or service each day.