Which one of the following alternatives is correct? a. The liability of a member for the obligations of the close corporation is limited to the extent of the member's contribution to the close corporation. b. The liability of a member for the obligations of the close corporation is limited to the extent of the member's contribution to the close corporation and members' loans advanced to the business. c. The liability of a member for the obligations of the close corporation is limited to the extent of the member's contribution of the least active members in the close corporation. d. The liability of a member for the obligations of the close corporation is limited to the extent of the member's contribution to the close corporation less distributions already paid to the members