Knowing that art is the , or subject, of "ode on a grecian urn" the reader understand the themes in the poem.

Topic

Explanation:

When the reader knows that the topic, or subject, of the poem "Ode on a Grecian Urn" is art, he is more likely to understand the themes that are explored in the poem. The ode is one of the most famous poems in the English language. It describes a speaker who is looking at an urn from Greek culture. The urn depicts a classical scene in which art is a significant component. The poem contains a philosophical meditation on the value of art and its connection to humanity.

scholarship is an sc because, by definition, a subject complement is the adjective, noun or pronoun that follows a linking verb, for example the verb be (in any of its forms).