Definition: In this task, you're given a question, a context passage, and four options which are terms from the passage. After reading a passage, you will get a brief understanding of the terms. Your job is to determine by searching and reading further information of which term you can answer the question. Indicate your choice as 'a', 'b', 'c', or 'd'. If you think more than one option is plausible, choose the more probable option to help you answer the question.
Input: Question: What other bands signed with Sub Pop? Passage:Nirvana released its first single, a cover of Shocking Blue's "Love Buzz", in November 1988 on the Seattle independent record label Sub Pop. They did their first ever interview with John Robb in Sounds who also made the release single of the week. The following month, the band began recording its debut album, Bleach, with local producer Jack Endino. Bleach was highly influenced by the heavy dirge-rock of the Melvins and Mudhoney, 1980s punk rock, and the 1970s heavy metal of Black Sabbath. Novoselic said in a 2001 interview with Rolling Stone that the band had played a tape in their van while on tour that had an album by The Smithereens on one side and an album by the extreme metal band Celtic Frost on the other, and noted that the combination probably played an influence as well. The money for the recording sessions for Bleach, listed as $606.17 on the album sleeve, was supplied by Jason Everman, who was subsequently brought into the band as the second guitarist. Though Everman did not actually play on the album, he received a credit on Bleach because, according to Novoselic, they "wanted to make him feel more at home in the band". Just prior to the album's release, Nirvana insisted on signing an extended contract with Sub Pop, making the band the first to do so with the label.
Links: a. Heavy metal music b. Bleach (Nirvana album) c. Sub Pop d. Sounds (magazine)
Output:
c