$($a$)$ What are the counter controlled and sentinel$-$controlled loops?

$($b$)$ What does $*$args$,**$ kwargs mean? Why would we use them?

$($c$)$ Assume, you are given two lists:

$a=[1,2,3,4,5]$

$b=[6,7,8,9]$

Write a command to create a list which has all the elements of a and $b$ in one dimension.

$(2)$

$($d$)$ Write a programme that takes a positive integer $n$ and produce in line of output as shown below:

$\backslash$table$[[1,,],[2,3,],[4,5,6],[7,8,9]]$

$($e$)$ What advantages do NumPy arrays offer over Python lists?

$($f$)$ What is the importance of user defined module? Discuss different in$-$built modules of Python.