I have a question for the knitters

Im wanted to knit something with beads in it. But the yarn Im using is pretty thick. Should I

A. - Find thick beads and thread it straight into the yarn

B. - Get a clear sturdy thread, fill it with thin beads and knit it simultaneously with the yarn.

Im a beginner so I dont know my a$$ from my elbow. I greatly appreciate anyone's advice. Thanks!!