is a sample where the population is first structured into different groups and information is collected randomly from all the different groups. A) Stratified sample, B) Simple random sample, OC) Cluster sample, OD) multistage sample E) systematic sample

is a sample where the population is first structured into different groups and information is collected randomly from all the different groups. A) Stratified sample, B) Simple random sample, C) Cluster sample, D) multistage sample E) systematic sample