​In a two-person repeated game,a tit-for-tat strategy is

A) ​When each player pursues his or her own self-interest without any cooperation
B) When players start off as non-cooperative and then cooperate when one or both players show interest in colluding
C) When players start off by cooperating and then mimic the other player's last move
D) ​With neither players defecting

An) _____ is a person or organization supplying goods or services to the project that has a special relationship with the project or parent organization and might bypass the bidding process.

A) Kanban
B) key supplier
C) bidder
D) open source
E) project champion