weRead, formerly iRead, is an online community of book enthusiasts. weRead started out as a social cataloging application on Facebook in June 2007 and has since expanded to over 3.1 million active members across Facebook, MySpace, Orkut, Hi5, and Bebo.

Can we draw the following conclusion?
weRead started out as an application in 2007

Choices: a. Yes; b. It's impossible to say; c. No;
a.