Texas Penal Code Practice

Public intoxication becomes a Class C Misdemeanor in Texas when the individual endangers oneself in a public place. This means that when someone's intoxication level reaches a point where they pose a danger to themselves or others in a public setting, they can be charged with a Class C Misdemeanor. It is important to note that being publicly intoxicated in and of itself is not illegal in Texas unless it reaches the point of endangerment.

The other options are not correct because:

A. Causing a disturbance in a private residence may lead to other charges, but it does not specifically make public intoxication a Class C Misdemeanor.

C. Consuming alcohol in a bar is not necessarily indicative of public intoxication, as it depends on the individual's behavior and level of impairment.

D. Possessing alcohol underage would likely result in a charge related to underage drinking but not necessarily public intoxication leading to a Class C Misdemeanor.