In the figure, the mountain base band ① is tropical rain forest, ② is subtropical evergreen broad-leaved forest, ③ is temperate deciduous broad-leaved forest, ④ is sub-frigid coniferous forest, and the horizontal regional differentiation ①-④ changes gradually in the north-south direction, which belongs to zonal law of latitude. Tianshui is the same as summer and autumn, and Cao Zhou is vast in winter and spring; The spring breeze begins in the garden. Cherry blossoms, apricots, peaches and plum blossoms reflect the differences caused by seasonal factors, and BD is wrong. (1)-(4) The horizontal regional differentiation law is the regional differentiation from the equator to the poles, so only from Saibei to Jiangnan, apricot blossoms can reflect the horizontal regional differentiation law and belong to the latitude zonality law. Option c fits the question.
So choose: C.