It can be concluded from the passage that the attitudes of the two sides are ______.

A．it supplies its Windows operating system with built-in RealPlayer
B．it doesn't share hundreds-of-millions of dollars with rival server makers
C．it refuses to cooperate with the EU commisssion in the anti-trust charges
D．it abuses its dominant position in the European Union's market

A．offer some information
B．set an example
C．stablish competition rules
D．warn Microsoft