What is the main difference between wheatley’s "on virtue" and frost’s "mending wall"? "on virtue" uses everyday language, while "mending wall" does not. "on virtue" uses metaphor, while "mending wall" does not. "mending wall" is in a modern format, while "on virtue" is not. "mending wall" has a strict rhyme scheme, while "on virtue" is not.

Donald is studying the eating habits of all students attending his school. he samples the population by dividing the students into groups by grade level and randomly selecting a proportionate number of students from each group. he then collects data from the sample. which type of sampling is used? select the correct answer below: systematic sampling convenience sampling stratified sampling cluster sampling