The Ontario Securities Commission Introduced Regulations Governing the Composition and Duties

The Ontario Securities Commission introduced regulations governing the composition and duties of audit committees, as well as their members' behaviour.The new rules

A) are as robust as parallel rules required by the U.S.Sarbanes-Oxley Act.
B) were adopted by all provincial and territorial securities regulators, except for British Columbia's.
C) were introduced in conjunction with the Canadian Securities Administrators.
D) all of the above.