Concept:The first missionary journey was a team effort led by Paul and Barnabas.
Explanation:Barnabas and Saul, later called Paul, were set apart by the Holy Spirit and sent out from Antioch.
They traveled together through Cyprus and parts of Asia Minor.
The Book of Acts clearly records that Barnabas accompanied Paul on this first journey.
Silas joined Paul only on the second missionary journey.
Peter worked mainly among the Jews and was not Paul's companion on this trip.
Lucius is mentioned as a teacher at Antioch but not as Paul's traveling partner.
Therefore, the person who went with Paul was Barnabas.
Answer:A. Barnabas.