Read this: In 2005, Beyoncé teamed up with House of Brands, a shoe company, to produce a range of footwear for House of Deréon. In January 2008, Starwave Mobile launched Beyoncé Fashion Diva, a "high-style" mobile game with a social networking component, featuring the House of Deréon collection. In July 2009, Beyoncé and her mother launched a new junior apparel label, Sasha Fierce for Deréon, for back-to-school selling. The collection included sportswear, outerwear, handbags, footwear, eyewear, lingerie and jewelry. It was available at department stores including Macy's and Dillard's, and specialty stores Jimmy Jazz and Against All Odds. On May 27, 2010, Beyoncé teamed up with clothing store C&A to launch Deréon by Beyoncé at their stores in Brazil. The collection included tailored blazers with padded shoulders, little black dresses, embroidered tops and shirts and bandage dresses.

When did Beyonce partner with C&A to sell fashion in Brazil?
What is the answer? (If it cannot be answered, return "unanswerable")
May 27, 2010