The following sentences contain different types of punctuation. In which of these sentences is the punctuation used correctly?
(1 Point)
a. Before you go to bed: close the window, it is cold tonight.
b. Before you go to bed; close the window, it is cold tonight.
c. Before you go to bed, close the window: it is cold tonight.
d .Before you go to bed, close the window; it is cold tonight.