The correct answer is D. 1500 BC.
The Aryans were a group of Indo-European people who migrated to India from Central Asia around 1500 BC. They brought with them their language, culture, and religion, which had a profound impact on the development of Indian civilization.
The Aryans settled in the Ganges Valley, which is now a part of northern India. The Ganges is one of the longest rivers in the world, and it is considered to be sacred by Hindus. The Aryans built their cities and towns along the banks of the Ganges, and they developed a sophisticated system of agriculture.
The Aryans also developed a complex social system, which was based on a caste system. The caste system divided people into four main groups: Brahmins (priests), Kshatriyas (warriors), Vaishyas (merchants), and Shudras (laborers).
The Aryans also brought with them their religion, which is now known as Hinduism. Hinduism is a polytheistic religion, which means that it worships many gods. The most important Hindu gods are Brahma (the creator), Vishnu (the preserver), and Shiva (the destroyer).
Hinduism is a complex religion with a rich history. It has influenced the development of Indian culture and society for centuries.
The other options are incorrect because they are not the time when the Aryans advanced towards India reaching the Ganges and the Yamuna rivers.