The maps show the expansion of the Tang Empire. 2 maps. Left: A key shows the Tang Empire, circa 618 C E in purple, and the Tang Empire, circa 700 in orange. Purple shading extends from the eastern coast of Asia, north to the Yellow River, and west to parts of Central Asia. Orange shading extends from the eastern coast of Asia, into Korea, and west to Turkey. Right: A key shows the Tang Empire, circa 618 C E in purple. Purple shading extends from the eastern coast of Asia, north to the Yellow River, and west to parts of Central Asia.

Based on the maps, how did the Tang Empire most change between 618 and 700?

It expanded largely to the south.
It expanded west, east, and south.
Most of its territorial gains included Korea.
Most of its territorial gains were to the north.
(Pls help and I don't know how to add maps but pls help)