Jerome wants to know how many students in his school enjoy watching comedy programs on TV. He poses this question to all 28 students in his math class and finds that 70% of his classmates enjoy watching comedy programs on TV. He claims that 70% of the school's student population would be expected to enjoy watching comedy programs on TV. Is Jerome making a valid inference about this population? (5 points)
A. Yes, it is a valid inference because his classmates make up a random sample of the students in the school
B. Yes, it is a valid inference because he asked all 28 students in his math class
C. No, it is not a valid inference because his classmates do not make up a random sample of the students in the school
D. No, it is not a valid inference because he asked all 28 students in his math class instead of taking a sample from his science class