Definition: In this task, you're given a question, along with a context passage which has extra information available on certain terms mentioned in it, i.e., the proper nouns in the passage. Your job is to determine whether information from more than one term is needed to answer the question. Indicate your choice as `a` for Yes or `b` for No.
Input: Question: Which of the two Texas stations that continued to broadcast Lauck and Goff began airing programs the earliest? Passage:When the Quaker contract expired, Lauck and Goff continued to broadcast on two Texas stations, WBAP (Fort Worth) and WFAA (Dallas). In 1933, The Ford Dealers of America became their sponsor for approximately a year. Horlicks Malted Milk, the 1934–37 sponsor, offered a number of promotional items, including almanacs and fictional Pine Ridge newspapers. During this period, the show was broadcast on Chicago's WGN (AM), one of the founding members of the Mutual Broadcasting System. Effective July 1, 1935, the program was also carried on WLW (Cincinnati, Ohio), KNX (Los Angeles, California), and KFRC (San Francisco, California). Along with The Lone Ranger, Lum and Abner was one of Mutual's most popular programs. In 1936, Dick Huddleston of Waters petitioned the United States Post Office to change the town's name to Pine Ridge. Postum cereal sponsored Lum and Abner in 1938–40, before Alka-Seltzer picked up the duo. Miles Laboratories, manufacturers of Alka-Seltzer and One-A-Day Vitamins, became the longest-running sponsor, backing the program from 1941 until 1948. Over the course of its life, Lum and Abner appeared on all four major radio networks: NBC, Mutual, CBS and ABC (formerly NBC Blue).


a