I think in this situation it is a comma splice. I may be wrong
Hope that helps
Well as a Percy Jackson fan, there was many hints. Such as, him hating his dad(Hermès). Also, his future was sealed, and his dad saw his future, and couldn’t bare to tell him, which lead him to believe the gods never listened or cared for the demigods.
I think it's d because to me that's the only one that makes sense out of all of them.