B. He received the Holy Spirit. This is not an unusual things, every person who is saved will receive the Holy Spirit. He comes to seal or secure our salvation. Tongues are a sign for the unbelieving Jews. He was obedient to the Lord's command of baptism.
Baptism is the outward profession of the inward conversion.
Baptism always follows belief in the Gospel. Cornelius' example is one of an ideal conversion. He the Word, received the Word, and obeyed the Word. If not then you need to come and commit your life to Him today.