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(a) Observation
(b) In-depth interviews
(c) Controlled experiment
(d) All of the above
Answer option ___________________c
I choose c................................................................
controlled experiment is right answer.......................................................................................................
My answer is also option (C)
answer C ____________________________ _ _ _ _
>>>>>>>>>>> (c) Controlled experiment >>>>>>>>>>>>>>>>
The answer is : Option ( C )
All mentioned tools and even more method are used to collect the data for a research proposal.
d. all of the above....................................