The elders at Jerusalem advised Paul on his arrival in the city to

A.

Avoid the Jewish Christians

B.

Purify himself along with men under vows

C.

Join those in the temple for prayer and fasting

D.

Preach the good news

Correct answer is B

Acts 21:17-36

 23 ''So do what we tell you. We have four men who are under a vow. 
24 ''Join these men, go through the rite of purification with them, and pay for the shaving of their heads.