This is a question with answer options. What kind of thing would the answer to the question "What materials did the three little pigs use to build their houses ?" be an entity, an abbreviation, a description, a human, a location, or a numeric value?

Possible answers:
 (1). description
 (2). entity
 (3). abbreviation
 (4). human
 (5). numeric
 (6). location
(2).