Which of the following describes collision coverage under Part D?

Collision coverage under Part D is specifically designed to provide financial protection for damages to a policyholder's vehicle resulting from accidents such as collisions with another vehicle or a rollover accident. This type of coverage comes into play regardless of who is at fault for the accident, ensuring that the insured can recover costs associated with repairing or replacing their vehicle.

The other options represent different types of coverage that do not align with the definition of collision coverage. For instance, coverage for theft and vandalism pertains more to comprehensive coverage rather than collision. Similarly, damages from natural disasters also fall under comprehensive coverage. Finally, the stipulation that coverage only applies when another driver is at fault is a misunderstanding, as collision coverage covers the policyholder's vehicle damage irrespective of fault. Thus, identifying option B accurately reflects the true scope of collision coverage.