Answer:
It clarified Christian teachings.
Step-by-step explanation:
The Council of Nicaea help to spread Christianity by clarifying some Christian teachings in the Bible. They helped clarify the aspect of the teaching of God being a trinity which comprises of the Father, the Son and the Holy Spirit. These three components are what makes up God the Almighty.
They also helped to purge out denominations with false doctrines to prevent negative influence and corruption.