Which of the following statements is false regarding randomization?

i)
 
randomization allows each member of the population to have an equal probability of being selected for the sample population.

 
 
ii)
 
randomization avoid bias.

 
 
iii)
 
randomization protects against unknown factors.

 
 
iv)
 
randomization can be replaced by accurately matching the sample to the population.

 
 
v)
 
randomization allows one to draw inferences about a population through a sample.

a. 
iii
b. 
iv
c. 
v
d. 
i
e. 
ii