Which key details should be included in a summary of Chapter 4 of Caleb’s Story?

Anna has done something terrible. She has given me a journal to fill. 'It's your job now,' Anna says as she hands Caleb her journals, asking him to continue writing the family story.The setting was on the prairie plain. It was set in the olden days where all you used were wagons and horses to get to town. The prairie grass swayed through the wind as light and soft as a feather. The sun beat down, just the wind blew and gentle breeze.

a. to introduce the audience to important characters .

b. to inform the audience where the story takes place .

e. to lay out specific details about different plot points.