Question: Consider the market for televisions. Which of the following would cause a movement along the market demand curve for televisions:

• Research becomes public that watching television reduces sleep quality
• People prefer to watch Netflix on their laptops instead of on televisions
• The price of a television increases
• LEDs, a component of televisions, becomes less expensive

I think its either c or d but im not sure and need some help. can someone please help me to clarify the question

i think it might be c since A movement along the demand curve means there was a change in supply which caused the amount of demand per price point to change. but not sure