What type of component would you develop to perform this task?

While implementing an Alfresco Content Services extension, you find you need to pull information out of a document and make it available as content properties.

What type of component would you develop to perform this task?
A . Content Transformer.
B . Metadata Extractor.
C . Alfresco Action.
D . Metadata Generator.

Answer: B

Explanation:

References: http://docs.alfresco.com/5.2/concepts/dev-repository-concepts.html