The appropriate mark to introduce a bulleted list is a:

A. colon.

B. semicolon.

C. period.

D. No punctuation

A

Possibly a colon ... as long as the colon doesn't immediately follow a verb.

I agree.

A is correct

D. No punctuation

Because bullets are used to visually separate items in a list, no additional punctuation is needed to introduce the list. Just start each bullet point with a hyphen or a bullet symbol.

The appropriate mark to introduce a bulleted list is D. No punctuation.

When creating a bulleted list, you do not need to use any punctuation to introduce the list. You simply start each item in the list with a bullet point or a similar symbol. The purpose of using bullet points is to visually organize information without the need for punctuation.