Answer:
c. Cluster random sample
Explanation:
Missing word "every participant in those meetings. What type of sample is this? a. Simple random sample, b. Stratified random sample, c. Cluster random sample, d. None of the above"
In the cluster sampling, researchers will divide a certain population into smaller groups which is known as clusters, then, they randomly select among these clusters to form a sample. In cluster sample, the clusters to be included are selected at random and all members of the cluster are included.