Please answer A and B

A sample is chosen randomly from a population that can be described by a Normal model. Complete parts a and b below. a} What's the sampling distribution model for the sample mean'iI Describe shape, center, and spread, Choose the correct answer below. p O A. Normal. with a center ate' and a standard deviation of , 1;; p O B. Normal. with a center at and a standard deviation of c, 43 o O 13. Normal. with a center at p and a standard deviation of . ,r; c 0 ll Normal. with a center at and a standard deviation at p. ,r; b} If a larger sample is chosen, what's the effect on this sampling distribution model? C) A. The center will be smaller, but the standard deviation will remain the same. 0 B. The standard deviation will be larger, but the center will remain the same. 0 C. The center will be larger, but the standard deviation will remain the same. 0 D. The standard deviation will be smaller, but the center will remain the same