In the exhibit, what is the meaning of C2 in the protocol state machine diagram?

Question

Options

• Athe trigger for operation m1
• Bthe action executed when the corresponding transition is taken
• Ca pre-condition for the operation m1
• Dthe guard of the transition associated with m1
• Ea post-condition of the operation m1

• A
  6% (1)
• B
  6% (1)
• D
  18% (3)
• E
  71% (12)

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