The correct answer is:
Regulating prices and competition
Protecting a member's interest against outsiders
Organizing religious festivals and banquets
Explanation:
Guild is the name given to an association of merchants, tradesmen or artisans that provide the same type of products or services and protect their interests by regulating prices, competition and quality standars. Guilds excluded outsiders from the market to assure equal competition between them. Guilds were very popular between the eleventh to sixteenth century, they also performed charity work in their community and maintained their local churches; Guilds built "Guildhalls" were they offered banquets.
