Which Maurya dynasty emperor assumed throne following the reign of Bindusara in approximately 268 BCE?

The correct option is Ashoka.

Step-by-Step Explanation:

1. Historical Lineage of the Mauryan Dynasty:
The Mauryan Empire was established in ancient India around 322 BCE. The succession of its early rulers is as follows:
• Chandragupta Maurya (c. 322 – 297 BCE): The founder of the Mauryan Dynasty.
• Bindusara (c. 297 – 273/268 BCE): Son of Chandragupta Maurya, who expanded the empire across the Indian subcontinent.
• Ashoka the Great (c. 268 – 232 BCE): Son of Bindusara, who assumed full control of the throne in approximately 268 BCE after a brief period of succession conflict following his father's death.

2. Overview of Other Rulers Mentioned:
• Dasaratha: A grandson of Emperor Ashoka who succeeded him around 232 BCE.
• Samprati: Another grandson of Ashoka who succeeded Dasaratha to rule the empire around 224 BCE.
• Brihadratha: The last ruler of the Mauryan Dynasty, whose reign ended around 185 BCE when he was overthrown by Pushyamitra Shunga.

Hence, Ashoka is the emperor who assumed the throne following the reign of Bindusara in approximately 268 BCE.