Joseph Edward Lauzon Jr. (born May 22, 1984) is an American mixed martial artist competing in the UFC's Lightweight division. He is tied with Nate Diaz as having the most post-fight bonus awards in UFC history. Joe's younger brother, Dan Lauzon, is also a mixed martial artist.

Can we draw the following conclusion?
Joseph Lauzon does not compete at heavyweight.

Pick your answer from:
[a]. Yes;
[b]. It's impossible to say;
[c]. No;
[a].