Read the follow statements about the async $/$ await commands in JavaScript.

Al The async commands$)$ must be nested inside a function defined with await.

B$)$ The await command$($s$)$ must be nested inside a function defined with async.

C$)$ We use these commands to ensure that $2$ or more API calls take place in asynchronous $($fast$,$ but unpredictable$)$ order.

D$)$ We use these commands to ensure that $2$ or more API calls take place in synchronous $($lockstep$)$ order.

Which of the following is true?

A and C

A and D

Band C

B and D