Answer:

Explanation:
a. Systematic sampling
Reason-Every 
 individual will be in the sample. The 
 is referred to as the sampling interval. 
-The sampling interval has a random start point but with a fixed, periodic interval.
-This method was appropriate given the homogeneous nature of the population.
-It is also representative given it has no bias.
b. A sample frame is the part of a population from which information is drawn.# In our sample, the sample frame is 
 person.
#No parts c, d as implied in the question