Final answer:
Jason's mother in the Friday the 13th films is Pamela Voorhees. She is a significant figure in the series and is portrayed as a vengeful character following her son's death.
Step-by-step explanation:
The name of Jason's loving mother in the Friday the 13th movies is c) Pamela. Pamela Voorhees, portrayed by actress Betsy Palmer, is a central character in the horror film series. She is known for her vengeful nature after the drowning of her son, Jason Voorhees, which led her to become an iconic movie villain.