History · Buddhism & Ancient India

With reference to Mahayana Buddhism, consider the following features: I. It gives importance to the Bodhisattva ideal, where an enlightened being delays liberation to work for the salvation of others. II. Its canonical literature was composed mainly in Pali. III. It recognized only symbolic representations of the Buddha and avoided human images of the Buddha. IV. It regarded strict observance of the Vinaya rules as the only path to becoming an arhat. How many of the above features are associated with Mahayana Buddhism?