On his first day at work in the DIY Shop, Bill's manager asked him to sweep the aisles clean. In aisle three, a customer was examining two different decking products. "Excuse me," he asked the new employee. "Which one do you think is best? I want some decking that will last, while looking modern. Which one do you think is the best fit?" Taken aback and without thinking. Bill answered, "I like the one in your right hand. It's a nicer color and seems pretty sturdy to me." Persuaded by what he thinks is an expert, the customer walks away with 50 pieces of expensive decking. The above passage refers to which principle?
1. Reciprocity
2. Authority (Persuaded by what he thinks is an expert)
3. Persuasion
4. Social Proof
5. Liking (I like the one in your right hand)
6. Consistency
