Answer:
The correct answer is letter "B": advertising is more effective than personal selling.
Step-by-step explanation:
The purchase process could be classified in three stages: prepurchase stage, purchase stage, and postpurchase stage. In the prepurchase stage, consumers can use marketing as a source to find out the product or service they are looking for exists. Individual selling might not be as effective since clients without do not have much information at this stage about the brand, where to locate the product and its main features.