A Marketing Research Firm,in Conducting a Comparative Taste Test,provided Five

Multiple Choice

A marketing research firm,in conducting a comparative taste test,provided five types of hummus to a sample of households randomly selected within a city.Which of the four methods of data collection is involved when people are asked to compare the five types of hummus?

A) Data distributed by an organisation or an individual.
B) A designed experiment.
C) A survey.
D) An observational study.