The maps show the Gupta Empire. 2 maps. Map A: A key shows Chandra Gupta I (circa 320 to 35 C E) in blue. Blue shading begins along the northern border of India and extends south to Bodh Gaya. The blue area is labeled Ganges Basin. Map B: A key shows rulers and area of expansion by color. Blue shading begins along the northern border of India and extends south to Bodh Gaya. The blue area is labeled Ganges Basin. Purple shading includes the region along the eastern coast to Bodh Gaya and northern India. Green shading extends from the purple region in northern India south and west to the coast of the Arabian Sea.

Which of Samudra Gupta’s achievements is reflected in Map B?

adding land through marriage
gaining control of the Ganges Basin
conquering the rest of northern India
expanding across the entire subcontinent