The direct object in this sentence is the yard. Thus, the answer is letter B. This follows the transitive verb which is a type of an action verb. From the sentence this transitive verb is "sells". Direct objects can either be noun, pronoun, clause, or phrase.
These lines demonstrate the political activism of his poetry because it goes to show his perspective on America, while also protesting against American racism which was almost at its peak at the time he wrote this poem
