When scriptwriters are writing scripts, why do they have to write them in accordance with industry standards?

scripts have to be written according to industry standards so that everyone involved will be able to understand.
scripts have to be written according to industry standards because it is an ethical violation not to do so.
scripts have to be written according to industry standards so that the general public will be able to understand them.
scripts have to be written according to industry standards because it is the way things have always been done.

Aconstruction company is creating a powerpoint presentation describing how they calculate costs during each construction step. they plan to email this presentation to clients. the individual clients will be watching the presentation slide show on their own personal computers. what is the most important formatting step the company should take to make the text readable and pleasing to the eye?

Why the bear has a slunky tail determine the meaning of the word slunk in the story

Write a program that prints the day number of the year, given the date in the form month-day-year. for example, if the input is 1-1-2006, the day number is 1; if the input is 12-25-2006, the day number is 359. the program should check for a leap year. a year is a leap year if it is divisible by 4, but not divisible by 100. for example, 1992 and 2008 are divisible by 4, but not by 100. a year that is divisible by 100 is a leap year if it is also divisible by 400. for example, 1600 and 2000 are divisible by 400. however, 1800 is not a leap year because 1800 is not divisible by 400.