Answer: Specially designed box should be chosen by the company.
Explanation:
Since we have given that
Length of standard size cube box = 5 inches
Length of boxes needs to ship their widget = 2 inches
Width of boxes needs to ship their widget = 4 inches
Height of boxes needs to ship their widget = 5 inches
So, Volume of cubic box =

Volume of cuboidal box =

Volume of foam packing in a standard box is given by

Total cost of widget packed in a standard box would be

So, the specially designed box which costs $3.00 is the most cost effective.
Hence, Specially designed box should be chosen by the company.