It will be first one possibly
1 (D) The loneliness of human beings
2 (A) The heron feeding on the snake in the pond
3 (D) The rabbits are part of George and Lennie's dream of one day having their own farm
4 (A) Flashback
5 (A) Time order/sequence signal words
6 (C) As a point of tension in the plot's rising action
Epas main purpose is to protect human and health environment so therefor your best answer here is A
