Read the "Map of the Yellow River" and answer the question 13- 15: Due to the influence of latitude, the upper reaches of the river freeze earlier in early spring, and the river carries ice downstream

Read the "Map of the Yellow River" and answer the question 13- 15: Due to the influence of latitude, the upper reaches of the river freeze earlier in early spring, and the river carries ice downstream, which often leads to fierce water level. From Liujiaxia in the upper reaches of the Yellow River to Baotou and Kaifeng in the lower reaches to the estuary, the river flows from low latitude to high latitude. Because the places with higher latitudes freeze early in autumn and winter and thaw late in winter and spring, it is easy to form ice dams, which block the inflow of water with lower latitudes, leading to the flooding of rivers and the breach of river banks. The river at ③ in the figure flows from high latitude to low latitude, so there is no possibility of ice jam.

So choose: C.