Chọn đáp án

----- Nội dung dịch tự động từ ảnh -----
Let's play a game where we start counting from the thumb with the number 1, the index finger is
the middle finger is 3, the ring finger is 4 and the little finger is 5, then after which we count in
backward order, where the ring finger is 6, the middle finger is 7, the index finger is 8, and the
thumb is 9; then we count in forward order again, and we keep on counting in this manner, as
shown on the diagram. Which finger will it land into when we count to 2021?
thumb
index
middle
ring
little