Using Conventional Probability Values,what Would It Mean If a Survey

Using conventional probability values,what would it mean if a survey finding that shows that 75% of American college students own a laptop has a 4% margin of error?

A) We are 95% sure that the actual proportion of American college students that own a laptop is 75%.
B) We are 91% sure that the actual proportion of American college students that own a laptop is 75%.
C) We are 95% sure that the actual proportion of American college students that own a laptop is 75%,plus or minus 4%.
D) We are 75% sure that the actual proportion of American college students that own a laptop is 95%.