Which of the following Cypher queries will return the actors who directed the movies they acted in?

	(a)	MATCH (actor)-[a:ACTED_IN]->(movie)<-[a:DIRECTED]-(actor) RETURN a
	(b)	MATCH (actor)-[:ACTED_IN]->(movie) JOIN (movie)<-[:DIRECTED]-(actor) RETURN actor
	(c)	MATCH (actor)-[:ACTED_IN]->(movie) CONNECT (movie)<-[:DIRECTED]-(actor) RETURN actor
	(d)	MATCH (actor)-[:ACTED_IN]->(movie)<-[:DIRECTED]-(actor) RETURN actor
	(e)	None of the above.