Answer:
online — Lesser investment, house to house,clear feedback, online, cost effective
Face to face — easy,less man power, gain respondents' trust,
Telephone— less effort, fast
Paper: sure of honest answer,
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Answers & Comments
Answer:
online — Lesser investment, house to house,clear feedback, online, cost effective
Face to face — easy,less man power, gain respondents' trust,
Telephone— less effort, fast
Paper: sure of honest answer,