A: Mr. White is correct, I would only add that probation is also possible if you qualify and they are willing to accept you. Maximum probation term is 10 years. Things that would prevent probation are things like prior trips to the penitentiary, or a poor history with prior probations (like probation revocation). You should definitely consult an attorney with a serious offense like Burglary.
A: It means you have been charged with class B misdemeanor possession of marijuana. The maximum penalty is up to 6 months in the county jail, up to $2000 fine, or both. In addition, a conviction will result in a drivers license suspension and surcharges on your license. Treatment of marijuana cases vary widely from county to county in Texas. It's not possible to say what any given county will do, but in any event you can look forward to a minimum of some good ol' counseling, some community service, and sobriety.