Question

Which sentence is punctuated correctly?

The new school directory is out; it contains: the names and phone numbers of all the students in the school.
The new school directory is out: it contains the names, and phone numbers of all the students in the school.
The new school directory is out; it contains the names and phone numbers of all the students in the school.
The new school directory is out, it contains the names and phone numbers of all the students in the school.

Answer 1

the new school is directory is out; it contains the names and phones if all the students on the school

Answer 2

“The new school directory is out; it contains the names and phone numbers of all the students in the school.”
Here, a semicolon is used correctly. It helps break up the sentence but also connect similar details.