Data scientist and data engineers often access databases to retrieve data. Which of the following specific tasks is an example of such tasks:

Select one:

a$.$ Data scientists access the data via SQL or language$-$specific libraries

b$.$ Data engineers perform a task called ETL $($Extract$,$ Transform, Load$)$ where they take data from one source and moving it to another

c$.$ Use of NoSQL, since it is best for high latency and JSON based storage

d$.$ All of the above.

Clear my choice