The correct option is
A Message / Attractions / Event details
NAME OF ISSUING AUTHORITY
TAGLINE
TITLE/NAME OF THE EVENT (exhibition, workshop, etc.)
SPECIAL ATTRACTIONS
ILLUSTRATION (WITH A CAPTION)
WHEN (date and time) AND WHERE
ENTRY FEES (if any) AND OTHER RELEVANT INFORMATION
CONTACT INFORMATION
Going by this format, the 4th blank should include special attractions like refreshment, attractive prizes, and entry pass information, that is, messages and/or event details. Hence, Option A is correct. The rest of the options do not express this condition, hence incorrect.