Frank Randolph Cady (September 8, 1915 June 8, 2012) was an American actor best known for his recurring and popular role as storekeeper Sam Drucker in three American television series during the 1960s "Petticoat Junction", "Green Acres", and "The Beverly Hillbillies" and his earlier role as "Doc Williams" on "The Adventures of Ozzie and Harriet".

Based on that paragraph can we conclude that this sentence is true?
Cady was best known for his role as Drucker in many television shows including "Petticoat Junction", "Green Acres", "The Beverly Hillbillies", and "The Adventures of Ozzie and Harriet."

Available choices:
(a). Yes;
(b). It's impossible to say;
(c). No;
(c).