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: What album was number one when Cassie's album debuted at number four? Passage:American singer Cassie Ventura, known mononymously as Cassie, has released one studio album, one mixtape, thirteen singles (including three as a featured artist) and eleven music videos. She recorded her first song, "Kiss Me", with Ryan Leslie for her mother's birthday in February 2005. Leslie then signed Ventura to his NextSelection imprint, writing and producing her first single "Me & U" that same year. The song soon went viral after made available on her MySpace page and became a club hit in Germany. In the meantime, Diddy partnered with Leslie to release Ventura's self-titled debut album Cassie in August 2006, through Bad Boy and Atlantic Records. The album debuted at number four on the US Billboard 200 and charted within the top forty in the UK Albums Chart, where it later received a Silver certification by the British Phonographic Industry. "Me & U" peaked in the top ten of several countries, including number three on the US Billboard Hot 100 and spent seven weeks atop the US Airplay chart, being certified Platinum by the Recording Industry Association of America selling over one million digital downloads. The follow-up "Long Way 2 Go" was the final single of the album and despite less successful in the US, it went on to peak within the top forty of various other countries.


b