Final answer:
Cassandra historically used port 9160 for Thrift client connections, but it's important to remember that these ports can be configured differently and that port 9160 is associated with the now-deprecated Thrift API.
Step-by-step explanation:
Cassandra uses the port for communication. Among the options provided, c) 9160 is historically associated with Apache Cassandra as the default port for Thrift client connections. However, it's crucial to note that the ports used by Cassandra can be configured, and therefore might be different depending on the setup. Apache Cassandra typically uses port 7000 for cluster communication (inter-node), port 9042 for CQL native transport, and before Cassandra 4.0, port 9160 for the Thrift API. It's worth mentioning that the Thrift API has been deprecated and is not recommended for new projects.