*/*_Which method implies the collection of information by way of investigator?s own examination, without interviewing the respondents??

*/*_Which method implies the collection of information by way of inves

1.	/_Which method implies the collection of information by way of investigator?s own examination, without interviewing the respondents??
A.	Schedule method
B.	Observation
C.	Posting questionnaire
D.	None of the above
Answer» C. Posting questionnaire