Answered

12. The questions of this survey involved more personal topics or opinions.
о
a. Mobile Survey
b. Email Survey
c. Paper Survey
d. Telephone Survey​

Sagot :

Usernamecannoemptyviz

Question

12. The questions of this survey involved more personal topics or opinions.

о

a. Mobile Survey

b. Email Survey

c. Paper Survey

d. Telephone Survey​

B or C because the survey is necessary and even more useful