Who was the ruler of the kingdom between the rivers Jhelum and Chenab?

Who was the ruler of the kingdom between the rivers Jhelum and Chenab?

A. King Porus
B. Darius III
C. Darius ll
D. Alexander the Great

Alexander challenged King Porus and asked for his submission. A fierce battle took place between the two at Karri on the bank of Jhelum.