Answer:
a.
Step-by-step explanation:
Based on the information provided within the question it can be said that the he covenant is a bar to recovery only if Guardian Security pays. Meaning that it is a way of getting off from being sued, but if they do not abide by the terms of the covenant and pay for the damages to Heidi's car then a jury would find contributory negligence and Gaurdian Security would not have a defense.