​A Researcher Came Up with an Unusual Way to Study

Multiple Choice

​A researcher came up with an unusual way to study the market penetration of Magazine A vs Magazine B in a particular city.At the city's garbage processing center,she obtained a week's sample of discarded magazines and compared the numbers of A to B.This is a(n) _____ research method,used to collect _____ data.

A) ​Interpretive, primary
B) ​Personal, secondary
C) ​Exploratory, secondary
D) ​Observation, secondary
E) ​Observation, primary