The correct answer to this question is C, Tradition. The word tradition itself means something that is handed down from one person to another. There are many mentions of tradition in the Bible. First Corinthians Chapter 11, Verse 23, states, "For I received from the Lord what I also handed on to you."
First Corinthians also references tradition in Chapter 15, Verse 3, where it states, "For I handed on to you as of first importance what I also received." Many spell religion with a capital T, but Catholics spell it with a lowercase t. Tradition works together with the Scripture to form one blueprint for the faith.