Which of the Following Statements A), B) or C) Is

Multiple Choice

Which of the following statements a) , b) or c) is false?

A) IoT devices (and many other types of devices and applications) commonly communicate with one another and with applications via pub/sub (publisher/subscriber) systems.
B) A publisher is any device or application that sends a message to a cloud-based service, which in turn sends that message to all subscribers. Typically each publisher specifies a topic or channel, and each subscriber specifies one or more topics or channels for which they'd like to receive messages.
C) Apache Kafka is a Hadoop ecosystem component that provides a high-performance publish/subscribe service, real-time stream processing and storage of streamed data.
D) All of the above statements are true.