You can use a ____ at the end of the greeting line.

A) comma
B) semicolon
C) colon
D) period

Greeting Line

A polite phrase or word used at the beginning of a communication to acknowledge the recipient.

Comma

A punctuation mark (,) used to indicate a pause between parts of a sentence or to separate items in a list.

Semicolon

A punctuation mark (;) used to separate items in a list or to link closely related independent clauses.