Even the simplest $C$ programs rely on three key language features:

Directives

Functions

Statements

Explain these three $(3)$ features.

Write a C program in a file called task$\_$one.c that uses printf to display $"$To C$,$ or not to C: that is

the question. $\frac{?}{?}$

$.$

Write a C program in a file called task$\_$two.c that uses the write system call to display $"$To C$,$ or

not to $C$ : that is the question. $\frac{?}{?}$

$".$

Shipping companies often charge extra for boxes that are large but very light, basing the fee on

volume instead of weight. The usual method to compute the "dimensional weight" is to divide the

volume by $166($the allowable number of cubic inches per pound$).$

Write a C program in a file called task$\_$three.c that computes and displays the dimensional weight of

a particular box. Test your code with the following Dimensions: $12108$