Use the Following Information to Answer the Question

Use the following information to answer the question. These two headlines are on the same topic.
Headline A: Married men who gain weight following the birth of their first child dramatically increase their risk of further
weight gain following the birth of more children, a new study suggests.
Headline B: Married male weight gain after the birth of the first child leads to additional weight gain following the birth of
more children, a new study finds.
-Suppose state lawmakers are interested in finding out whether a newly instituted elementary school program about bullying is effective. A statistician divides the state into three regions then
Randomly selects a sample of thirty elementary schools from each region. Students at the selected
Schools complete a questionnaire about bullying. What kind of sampling does this illustrate?

A) Random Sampling
B) Cluster
C) Systematic
D) Stratified