Refer to the passage below and then answer the question afterwards in the same language as the passage:

Passage: Born in Terrassa, Barcelona, Catalonia, Xavi is a product of FC Barcelona's La Masia youth system, which he joined at the age of 11. His father, Joaquim, was a former player for Sabadell in the first division. Xavi made his way through the youth and reserve teams and was a key member of Josep Maria Gonzalvo's Barcelona B team that won promotion to the Second Division.

Question: What team did Xavi play for?
Barcelona B team