In the Parable of the Sower (Matthew 13:1-23), what does the thorny ground primarily represent in relation to hearing the Word of God?

A A receptive heart that immediately understands and acts upon the message. B A superficial understanding that quickly fades due to persecution. C A heart that is choked by worldly anxieties and the deceitfulness of wealth. D A hardened heart that rejects the message from the outset.