Respuesta :
C. she points out to tammy where the grammar is incorrect and shows her how she can improve her grammar
Answer: C) She points out to Tammy where the grammar is incorrect and shows her how she can improve her grammar.
Explanation: If Jenna does what is stated in option A, she will be violating Tammy's privacy and setting up a very likely humiliating scenario for her; option B would not be constructive feedback at all because Tammy needs to know where she went wrong (she would have found out already if she could); finally, option D is not helpful to Tammy in any way whatsoever.