Correct Answer : D
Explanation :
Explanation :
Primary data is collected first-hand through interviews, surveys, observations, etc.
Correct Answered :
Wrong Answered :
A
Surveying existing research papers
B
Reviewing census data
C
Analyzing historical records
D
Conducting interviews and surveys
Primary data is collected first-hand through interviews, surveys, observations, etc.
Correct Answered :
Wrong Answered :
A
Original research studies
B
Publicly available databases
C
Personal interviews
D
Laboratory experiments
Secondary data refers to data already collected, e.g., from databases, published reports.
Correct Answered :
Wrong Answered :