Isaiah is on an insurance plan provided through his father's employer. he had oral surgery that was supposed to be billed to his dental insurance, but they are claiming it is not covered by their plan and should be billed to his medical plan. the oral surgeon's office tried billing the medical plan, and they said it is not covered. who can isaiah and his father turn to for with this matter?

a. the insurance representative at his father's office, because she may contact the insurance companies or give isaiah's father specific people at each company to contact directly
b. the insurance representative at his father's office, because she is responsible for the mixup and with her , it will be the fastest way to resolve the problem
c. a lawyer who handles insurance cases, because hiring a lawyer will be more effective than trying to deal with these companies on their own
d. a lawyer who handles insurance cases, because she will be able to threaten the insurance companies involved and will be more cost effective than dealing with the companies directly