I have a phot of the problem

4) Identify which of these types of sampling is used: random, stratied, systematic, cluster, convenience. (6pts) a. 49, 34, and 48 students are selected from the Sophomore, Junior, and Senior classes with 496, 348, and 481 students respectively. b. A sample consists of every 50th students from a group of 1496 students. c. A pollster uses a computer to generate 500 random numbers, then interviews the voters corresponding to those numbers