In Janus v. Tarasewicz, what was the court's conclusion regarding the burden of proof on the issue of survivorship? Question 1 options: a) Survivorship must be established by clear and convincing evidence by the party whose claim hinges on survivorship. b) Survivorship must be established by a preponderance of the evidence by the party whose claim hinges on survivorship. c) Survivorship must be established by clear and convincing evidence by the decedent's estate. d) Survivorship must be established by a preponderance of the evidence by the decedent's estate