The purpose of ongoing supplier relationship management following a negotiation and contract award is that...

1 and 2 (Enables the buyer to monitor supplier performance and persuade the supplier to renegotiate better terms)

1 and 3 (Enables the buyer to monitor supplier performance and work with the supplier to resolve relationship problems)

3 and 4 (Enables the buyer to work with the supplier to resolve relationship problems and evaluate unnecessary concessions)

2 and 3 (Enables the buyer to persuade the supplier to renegotiate better terms and work with the supplier to resolve relationship problems)