A Kaplan Business School (KBS) staff member in Australia decided to estimate the average number of hours KBS students study outside of class time per week. At KBS, there are equal numbers of male and female students. There is a belief that the number of hours students study outside of class time may be related to their gender. The staff member used the student enrolment list, divided students by gender of male and female, then randomly selected 50 male students and 50 female students. The staff member then emailed each selected student a survey, asking about the number of hours of study outside class time the student did in the previous week. Which of the following best describes the sampling method used by the KBS staff member? O a. Stratified O b. Cluster O c. Simple Random Sampling O d. Systematic sampling O e. None of these choices is correct.A survey aims to identify the streaming services owned by households. Respondents were asked for their age and whether or not their household had a streaming service. The results of the survey are tabulated below: Does your household have a streaming service? Age Yes No