Final answer:
The screwball comedy that starred Carole Lombard as a socialite and William Powell as the title butler is "My Man Godfrey".
Step-by-step explanation:
The screwball comedy that starred Carole Lombard as a socialite and William Powell as the title butler is b) "My Man Godfrey". The film was released in 1936 and was directed by Gregory La Cava. It tells the story of a wealthy socialite who hires a homeless man to become her family's butler.