Anne Frank is referred to as “a symbol for the lost promise of the children who died in the Holocaust.” What does this mean

Which sentence does not contain an intensive pronoun? a) i guess i will just take out the trash myself. b) while treating herself to lunch, angie ran into an old friend. c) tony himself made dinner last night even though he hates to cook. d) lisa wondered if she herself was the one who left the oven on all day.