Drivers become subject to the liability insurance law when accident damages reach:

Answer: C — $1000 to property of one person

The correct answer is based on the specific threshold set by Texas law for liability insurance requirements following an accident. In Texas, drivers are required to have auto liability insurance when a single accident causes damages that exceed $1,000 to the property of one individual. This law is in place to ensure that drivers can cover potential damages they cause to others, thereby protecting both parties involved in an accident. Factors such as ensuring financial responsibility and protecting victims form the rationale behind this law. Knowing this threshold helps drivers understand the importance of carrying sufficient insurance coverage and encourages responsible driving practices.