This type of sampling makes use of geographical blocks or voting districts as a sampling frame in order to cut down a huge population size.

Group of answer choices

a. Cluster

b. Systematic

c. Stratified

d. Simple

The correct option is a) Cluster.

Step-by-step explanation:

Consider the provided information.

Types of sampling:

Systematic sampling: list of elements is counted off. Simple random sample: It is a subset of the population chosen from a larger set. Cluster sampling: It divides the population into groups, usually geographically. Stratified sampling: It divide population into groups called strata. but this time population might be separated into males and females

Here, the population is divided into geographical blocks,

Thus, the type of sampling is cluster.

Therefore the correct option is a) Cluster.