Final answer:
The post-conversion life of the Apostle Paul was marked by persecution, hardships, and extensive travels as he spread Christianity to various cities in the ancient Mediterranean world. So, the correct answer is option c.
Step-by-step explanation:
After his conversion, the Apostle Paul led a life characterized by persecution, hardships, and extensive travels. He faced opposition from both religious and political factions, endured imprisonment multiple times, and experienced physical threats. Despite these challenges, he continued to spread Christianity to various cities in the ancient Mediterranean world, including Ephesus, Corinth, Thessalonica, and Rome. So, the correct answer is option c.