also, which student performed better in their test with respect to their class?

A professor is teaching two sections of a Calculus course, section A and section B. Assume that the test scores are normally distributed. On the midterm, Kelvin in section A scored an 82. The mean of section A was 76 and the standard deviation of the section was 5. Laila, in section B, also scored an 82 but the mean of section B was 75 with a standard deviation of 4. The results from this problem will be used on the next problem so it is a good idea to write them down but you may return to this problem as well. Find the z-score for Omar and the z-score for Letitia for the midterm of this Calculus course. O A. Kelvin: z = 1.2 and Laila: z = 1.75 O B. Kelvin: z = 1.2 and Laila: z = -1.75 C. Kelvin: z = -1.2 and Laila: z = -1.75 O D. Kelvin: z = -1.2 and Laila: z = 1.75