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
2.4k
1
Do you find this helpful?
4

Discussion

WN

Wezily ngosa
3 years ago

I need more questions for education research
0