Starbucks' "Bean Stock" is:

a. the company term for the practice of showcasing of new artists' music in its stores. the company term for the rise (or fall) in value of Starbucks shares on the stock exchange.
b. the Starbucks newsletter where outstanding employees are featured not only for their achievements at work but their achievements within the community.
c. the name given to plantations that supply Starbucks with superior coffee beans while still maintaining fair and humane treatment of its workers.
d. the Starbucks stock option plan for employees that allows them to share the rewards of their hard work.