An application uses the RDF model to describe relationships between graph objects stored in Amazon Neptune. What should query language be used in this scenario?

Answer options:

A.Gremlin
B.Cypher
C.SPARQL
D.GraphQL

Answer: C
Option A is incorrect because Gremlin query language is used with Property Graph (PG) model.
Option B is incorrect because Cypher is a graph query language for the Neo4j graph database and is not supported by Amazon Neptune.
Option C is CORRECT because SPARQL is the query language used with RDF models and supported by Amazon Neptune.
Option D is incorrect because Amazon Neptune does not support GraphQL.
Reference:
https://docs.aws.amazon.com/neptune/latest/userguide/intro.html