Gandhara school of art came into existence in

Hinayana sect
Mahayana sect
Vaishnava sect
Shaiva sect

The correct answer is: B. Mahayana sect.

The Gandhara school of art was a Greco-Buddhist art style that developed in the region of Gandhara, which is now part of modern-day Pakistan and Afghanistan. The style emerged in the 1st century CE, during the Kushan Empire, and flourished until the 7th century CE. Gandharan art was influenced by both Greek and Buddhist art, and it is characterized by its use of Hellenistic techniques and motifs to depict Buddhist subjects.

The Gandharan school of art was an important center of Buddhist art, and it produced some of the most famous and iconic images of the Buddha. The style had a significant influence on the development of Buddhist art in other parts of Asia, including China, Japan, and Korea.

The Hinayana sect is one of the two main branches of Buddhism. It is the older of the two branches, and it is characterized by its emphasis on individual liberation. The Mahayana sect is the younger of the two branches, and it is characterized by its emphasis on compassion and the bodhisattva ideal. The Vaishnava sect is one of the four major Hindu sects. It is the sect that is devoted to the worship of Vishnu, one of the three principal deities of Hinduism. The Shaiva sect is one of the four major Hindu sects. It is the sect that is devoted to the worship of Shiva, one of the three principal deities of Hinduism.