Final answer:
Without specific details of the insurance coverage under Plan A and B, we cannot accurately determine how much Gabriela would pay towards the other driver's medical costs. The answer depends on the extent of coverage provided by each plan.
Step-by-step explanation:
The question involves determining how much Gabriela would have to pay towards the other driver's medical costs under two different insurance plans after being at fault in an accident. Without specific details of plan A and plan B, we can provide only a generalized explanation. The available options suggest either both plans cover the costs completely ($0 liability for Gabriela under both plans), one plan covers the costs completely while the other does not (either Plan A: $710, Plan B: $0 or Plan A: $0, Plan B: $710), or neither plan covers the costs (Gabriela pays $710 under each plan). The best choice can only be made if the coverage details of plan A and plan B are provided.