members of the class in individually controlling

the prosecution or defense of separate actions; (B) the extent and nature of any litigation concern- ing the controversy already commenced by or against members of the class; (C) the desirability or undesirability of concentrating the litigation of the claims in the particular forum; (D) the difficul- ties likely to be encountered in the management of class action. (P.B. 1978-1997, Sec. 88.) (Amended June 22, 2009, to take effect Jan. 1, 2010.)