The two main functionalities of the NSP REST API gateway services are Location Services and Authentication and Termination Services. Location Services help in managing the geographical context of the network, while Authentication and Termination Services ensure secure access and proper termination of sessions.

In Kafka, a 'Topic' represents a stream of messages of a particular category. Topics are logical channels to which records are published and from which records are consumed. Each topic can be split into partitions to maintain load balancing and redundancy.

Kafka has four main components: Producer, Consumer, Topic, and Broker. The Connector is part of Kafka Connect, an extension framework, but not a core component of Kafka itself. Therefore, the statement suggesting that Kafka has four components including Connector is false.

The statement that NSP APIs support REST/RESTCONF, SOAP/XML and GraphQL is FALSE. Typically, network services platforms support either REST/RESTCONF or SOAP/XML, but rarely all three protocols including GraphQL. GraphQL is more commonly associated with web applications rather than network management. Therefore, the correct answer is B.

RESTful APIs are commonly used for providing various services over the web, including location services. They enable interaction with RESTful web services by using standard HTTP methods. Therefore, the option that correctly identifies the NSP API type that provides location services is REST.