Read the following passage carefully and answer the question given below:

By the first century AD, many nomadic tribes had entered India through the mountain-passes in the north west. In the course of time, they were all Indianised. Kanishka, the chief of one of these tribes, built up an empire with Peshawar as the capital. Like Asoka, Kanishka came under the influence of Buddhism and was converted by a celebrated Buddhist scholar Asvaghosha. Kanishka appears to have tried to emulate Asoka. He strenuously worked for the spread of the Buddhist faith. He convened a Buddhist council to discuss grave religious problems. At the time, a big schism had arisen and the Buddhists were divided into two sects-the Hinayana and Mahayana. Of the two, the Mahayana became more popular. The Hinayanists believed in the traditional intellectual doctrine whereas the Mahayanists adopted new interpretations. The Mahayanists started worshipping Buddha as the living saviour and their ritualism had a strong appeal to the ordinary people. Nagarjuna, a great scholar in the court of Kanishka, formulated and propagated the Mahayana ideas. The differences between the two sects were largely reconciled in this council. Charaka, the most celebrated medical scientist of ancient India, is believed to have been Kanishka's court-physician. The Kushan empire built by Kanishka was dissolved by the third century AD.

Mahayana ideas were formulated by:

(A) Kanishka
(B) Asoka
(C) Nagarjuna
(D) Charaka.

Choose the correct answer from the options given below:

(C) Only

The correct answer is Option (1) → (C) Only

"Nagarjuna" as the one who formulated Mahayana ideas is clearly mentioned in the passage. The passage states, "Nagarjuna, a great scholar in the court of Kanishka, formulated and propagated the Mahayana ideas." This statement explicitly identifies Nagarjuna as the scholar responsible for formulating Mahayana ideas.