To answer this question, we need to understand the purpose of standard dialog boxes. Standard dialog boxes are pre-designed user interface elements that provide commonly used functionality, such as file open and save, print, and font selection. They are used in software applications to provide a consistent user experience and make it easier for users to perform common tasks.

Option A) They are easy to create - This option is correct

Option B) They provide functionality familiar to users - This option is correct because standard dialog boxes are designed to provide familiar functionality to users, which makes it easier for them to use the software application.

Option C) Developers can create their own versions of Dialog boxes - This option is incorrect because the purpose of standard dialog boxes is to provide consistency and familiarity to users.

Option D) Both a and b - This option is correct because standard dialog boxes are easy to use and provide familiar functionality to users.

Option E) All of the above - This option is incorrect because option C is not true.

The correct answer is D, which means both option A and B are correct.