prompt: Given levels: A1, A2, B1, B2 and C1. Which cefr level would you assign to: "A man, if he had had sexual intercourse with a woman at night, could sacrifice on the following day; the intervening period clearly was thought of as overcoming the pollution of sexual activity which is clearly implied by the provision; if he had had sexual intercourse by day, he could sacrifice after washing."?
label: c1