You are planning the compute contexts for your environment.
You need to execute rx-function calls in parallel.
What are three possible compute contexts that you can use to achieve this goal? Each correct answer presents
a complete solution.
NOTE: Each correct selection is worth one point.

A.
local parallel

B.
Spark

C.
local sequential

D.
Map Reduce

E.
SQL

Explanation:
https://docs.microsoft.com/en-us/azure/hdinsight/hdinsight-hadoop-r-server-compute-contexts