T leaves his 100 shares of his Acme stock to his son S upon his death. Before T dies, Acme is merged with Willowbark, and 2 stocks of Willowbark are issued for every one stock of Acme, and the Acme stock is dissolved. Under a UCP jurisdiction, what does S have?
a) 100 shares of Acme
b) 200 shares of Willowbark
c) 200 shares of Acme
d) No shares