B). Beauty is a universal language among friend and foe.
Explanation:
In this poem, one of the themes that Keats examines is the idea of beauty, and how this connects to human life. In the poem, he argues that beauty in the real world is not eternal. This is seen in how people age, life changes, and things decay. However, he also states that beauty is a universal language. This is supported by the fact that Keats argues that "beauty is truth," and the fact that the Grecian urn communicates something to him through its beauty.
