( ) is one of the most common strategies in international business negotiation.

A、{ 94, 50, 86, 25, 47, 66, 31, 25, 15 }
B、{ 50, 31, 94, 25, 15, 25, 86, 66, 47 }
C、{ 86, 25, 25, 15, 47, 94, 31, 66, 50 }
D、{ 15, 25, 66, 86, 47, 94, 31, 25, 50 }