Identify the type of subordinate clause in the following sentence .the dog that chewed up my new shoes is named oscar whats the sub clause

What effect do the stanzas have on the meaning of this poem? a) each stanza asks the same question in different words. b) the stanzas do not work together to create meaning in the poem. c) each stanza presents a different aspect of the creation of the tiger. d) each stanza presents questions that are answered in the last stanza.