As the volume of advertising is getting more and more expanded it is becoming difficult to make advertising messages heard by the target prospects. This will affect the.............of advertising.

Effectiveness

The correct answer is option 3- Effectiveness.

As the volume of advertising is getting more and more expanded it is becoming difficult to make advertising messages heard by the target prospects and this will affect the effectiveness of the advertising.

Effectiveness of advertising refers to how well the advertising message achieves its intended goal, such as reaching the target audience and influencing their behavior. If the volume of advertising is expanding, it can become difficult for any single message to stand out and be heard by the target audience, thereby reducing its effectiveness.