What elements would a California court look to in order to determine if a will or part thereof is invalid on the basis of undue influence?
a) The elements as provide for by statute.
b) Alleged influencer's motive and opportunity, testator susceptibility to influence, and a causal connection between the alleged influence and disposition.
c) Alleged influencer's opportunity, testator susceptibility, and testator's clinging to influence without any reasonable basis.
d) Alleged influencer's susceptibility to influence, motive, and opportunity; and a causal connection between the alleged influence and disposition.