Which of the following statement is true about measuring price elasticity?

1 point

a)For field/laboratory experiments, one only needs to measure preferences and intentions

b)A carefully designed choice set in a Trade-Off Analysis can allow us to measure how a consumer trades off one variable against another

c)One of the strengths of a Survey is that people are honest about their intentions on what they will do

d)When actual purchase is measured under controlled conditions, you are measuring Sales Data

e)Surveys measures the variable of actual purchases in an experimental environment