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.
Q: Question: What year was the first issue of Gleason's comic that was selling a million copies a month by 1948? Passage:Following the postwar crime comics vogue spearheaded by publisher Lev Gleason's Crime Does Not Pay, which by 1948 was selling over a million copies a month, came romance comics, which by 1949 outsold all other genres, and horror comics. The same month in which Adventures into the Unknown premiered, the comic-book company EC, which would become the most prominent horror-comics publisher of the 1950s, published its first horror story, "Zombie Terror", by the then relatively unknown writer and artist Johnny Craig, in the superhero comic Moon Girl #5. Almost simultaneously,Trans-World Publications issued its one-and-only comic, the one-shot Mysterious Traveler Comics #1 (November 1948), based on the Mutual Broadcasting Network's radio show of that name and including amid its crime and science-fiction stories a reprint of the Edgar Allan Poe adaptation "The Tell Tale Heart", reprinted from Charlton Comics' Yellowjacket Comics #6. Street and Smith also published two issues of "Ghost Breakers" in late 1948. (ibid GCDB)

A:
a