Why did Sir Percy Blakeney share his secret with his wife ? (The scarlet pimpernel)

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.

According to the police officer, the car accident could not have been avoided.

Pronoun clearly shows what is being referred to at specific person place or thing