 
         
        McqMate
| Q. | When did the telephone become an accepted tool for primary data collectionin marketing research? | 
| A. | 1930s | 
| B. | 1950s | 
| C. | 1970s | 
| D. | 1990s | 
| Answer» C. 1970s | |
View all MCQs in
Methodology of Historical Writing