With health care costs climbing even higher during this

With health care costs climbing even higher during this enrolment season, more employers are adopting a tiered system for passing on the bulk of these costs to their employees by assigning bigger contributions to workers in top salary brackets and to offer some relief to workers who make less money.

A. for passing on the bulk of these costs to their employees by assigning bigger contributions to workers in top salary brackets and to offer some relief to workers
B. to pass on the bulk of these costs to its employees by assigning bigger contributions to workers in top salary brackets and by offering some relief to workers
C. for passing on the bulk of these costs to their employees through assigning bigger contributions for workers in top salary brackets but offering some relief to workers
D. to pass on the bulk of these costs to their employees by assigning bigger contributions to workers in top salary brackets and offering some relief to workers
E. to pass on the bulk of this costs to their employees by assigning bigger contributions to workers in top salary brackets and by offering some relief to workers