It's time for a sweet News Quiz with the founders of Taza Chocolate.

Alex Whitmore and Kathleen Fulton are the dynamic husband-and-wife duo behind the Somerville-based chocolate company. Whitmore, Taza's CEO, and Fulton, Taza's Chief Design Officer, stopped by the WGBH Studio at the Boston Public Library to tell Boston Public Radio about their unusual stone-ground chocolates and get quizzed on the week's headlines.