Under an 80/20 Plan, If a Nonparticipating Provider's Usual Charge

Under an 80/20 plan, if a nonparticipating provider's usual charge is $200 for a procedure and the allowed amount is $150, the provider can collect:
A)$150 from the insurance carrier and $50 from the patient.
B)$120 from the insurance carrier and $30 from the patient.
C)$120 from the insurance carrier and $80 from the patient.
D)$160 from the insurance carrier and $40 from the patient.