Need help ASAP! I will be reporting links to unknown websites/files. Will mark brainliest if the answer is correct. :) ❤️

Which example is the weakest research question?

A. Why has the price of a movie ticket gone up in the past decade

B. How did the movies become an integral part of pop culture

C. Why are movies a popular form of family entertainment

D. Which movie series is better: Star Wars or The Lord of the Rings