My opinion is the answers A and D. I would choose A if you can only choose one, though.
Answer:
ERP.
Explanation:
Enterprise Resource Planning Is the software platform for bidirectional applications. The main objective of ERP it shared the database system and connects the enterprise as a whole so that data can be reached the once and made accessible to all users.
The main advantage of Enterprise Resource Planning is that Enterprise cycle parallelization or optimization it also the boost performance of the organization and saving the time.
Akka. Speaking of high concurrency tools written in Scala, Akka is an extremely fast, extremely concurrent framework for building distributed applications. ... Similar to Finagle, Akka is written in Scala and provides both Scala and Java APIs.
The answer & explanation for this question is given in the attachment below.