A tropical cyclone has recurved and entered temperate latitudes. In the Northern Hemisphere when a large high pressure system lies north of the storm，what situation may occur?（）

A.The low may suddenly deepen，and the cyclone intensify and pick up speed
B.The left semicircle may become the dangerous semicircle
C.The low and the high may merge and cancel out the weather characteristics of each
D.The high may force the cyclone to reverse its track