Please I just need the answer of question d

Testing Paired Samples A statistics tutor wishes to study the effect that his tutoring has on his students. He randomly selects 4 new students and records their current grades in their statistics courses. After half a semester of tutoring, the students' grades are recorded again. The statistics tutor then uses a paired, two-sample hypothesis test to determine if the differences between the before and after grades are statistically significant. (The tutor assumes a 5% level of significance.) Students: A B C DI Before 83 78 93 After 80 80 96 86 Useful tools: Normal Distribution Calculator t-Distribution Calculator a. Which of the following null and alternative hypotheses match this scenario? OH. : AL Z H. : AR -. O H. : Ap 20 O Ho: Au 20 H.: AuSO b. Which type of test should be applied? The alternative hypothesis indicates a right-tailed test. The alternative hypothesis indicates a left-tailed test. O The alternative hypothesis indicates a two-tailed test. c. Which type of distribution should be applied? The required distribution is a Normal Distribution. The required distribution is Student's t-Distribution. The required distribution is a Binomial Distribution approximated by a Normal Distribution. d. Calculate the p-value from this hypothesis test. P = 0.44