Dear student,
The correct option is (c) Because she wanted Roger to be happy.
Jack ended the Skunk's story by the Skunk getting back his old bad smell because the Skunk's mother did not approve of the new smell of roses. She hit the wizard and told him to change her son's smell back to his characteristic smell.
However, Jo did not like this end of the story as she wanted the Skunk to retain his rosy smell, so that his friends would like him and play with him. She wanted the story to end with the Skunk's mother getting hit by the wizard for not understanding Skunk's needs and the Skunk to be happy with his new smell.
Regards
