The Primary Purpose of a Banner Ad Is To

The primary purpose of a banner ad is to:

A) facilitate the use of a firm's Facebook page by offering free product samples.
B) bring Internet users to a Web site other than the one they intended to visit.
C) ensure that Web site users are engaged with a firm's product or brand.
D) encourage Internet users to share entertaining messages with others.
E) achieve synergy by ensuring that artwork and headlines work together.