Which of the following italicized part is a finite phrasal verb?

Which of the following italicized part is a finite phrasal verb?
A.The man is not to be bluffed.
B.His duty is to deliver letters.
C.It is a mixture consisting of oil and vinegar.
D.Born in the countryside, he is accustomed to country life.
正确答案：The man is not to be bluffed.