The mountains in the north of the Indian subcontinent hindered, but did not prevent, foreign invasions. Which statement BEST explains why foreign invasions of ancient India succeeded? O A Japanese invaders were forced to attack India by sea. OB Invaders from southeast Asia could come through the foothills and the Ganges River Valley. C The mountains were not high enough to be a real deterrent. D. Invaders were able to reach India through passes in the western section of the mountains. ​