What is the cefr level of sentence: "His mother was climbing out of the ambulance without looking back; he heard her feet smack on the wet grass and he crawled frantically after her, certain in his stupor that his father's body was at this moment being dragged from the rubble, torn and lifeless, and goddammit if he was going to let his mother have this to herself, protect him from this moment that was as much his as it was hers."?
c1