What is the colon doing in this sentence? I have a dentist appointment tomorrow at 4:00. Choose 1 answer: A It's separating elements of a title. B It's separating the hour and minutes in the time of day.

The colon in the sentence "I have a dentist appointment tomorrow at 4:00." is separating the hour and minutes in the time of day. Therefore, the correct answer is:<br /><br />(1) It's separating the hour and minutes in the time of day.