This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Sampling, Subject name: Social & Preventive Medicine
The list of all units in a population is called:- 
Select and explain. 
A. Random sampling, B. Sampling Frame, C. Bias, D. Parameter
B: Sampling Frame
Answer: B: Sampling Frame 
Explanation: The listing of the accessible population from which sample is drawn is called the Sampling frame. If you were doing a phone survey and selecting names from the telephone book, the book would be your sampling frame. The frame should contain all the units of the population under consideration, the target population .