Frugging means:
a.
claiming that a survey is for research purposes and then asking for a sale or donation.
b.
fully explaining to respondents any deception that was used during research.
c.
using the data collection personnel to fill out surveys for fake respondents
d.
combining different publicly available information, usually unethically, to determine consumers' identities, especially on the Internet
e.
conducting research below professional standards
Answer: A