Respuesta :
Answer:
The noun clause, "which British playwright wrote Macbeth", has been used as a direct object.
Explanation:
Noun clauses are dependent clauses that act as nouns. Therefore, they act as subjects, direct objects, indirect objects, predicate nominatives or objects of a preposition. In this case, the noun clause has been introduced by the relative pronoun which and functions as the direct of the transitive verb know. This transitive verb selects two arguments: The NP "you" and the IP "which British playwright wrote Macbeth".