Which of the following is NOT a result after the 1989 Medicare reform of Omnibus Budget Reconciliation Act (OBRA)?

a		The incentive of providing more technical medical procedures to Medicare patients becomes weak.
b		The federal government develops guideline for physicians to contain costs.
c		Physicians who accept billing limit assignment receive payments from MCOs such as HMOs for Medicare treatment.
d		The rate of growth in physician fees is monitored.

choose one please. TIA.