A key difference between advertising and public relations is that:
a. advertising only targets broad audiences, while public relations activities focus on narrow audiences.
b. advertising is a paid and planned form of marketing communication whereas public relations may be impromptu in nature.
c. advertising is always more effective than public relations in reaching and persuading consumers to purchase a product.
d. advertising is designed to remind consumers, whereas public relations is used to reward them.
e. advertising can only be used in conjunction with consumer satisfaction surveys.