The correct answer is 'To outline the program's logic in human-readable format before coding.' Pseudocode is used for planning and explaining a program's structure without delving into the specifics of programming language syntax. It's a high-level description of what a program will do and helps programmers and others involved in the development to understand how the program will function. 'To debug programs' is incorrect because pseudocode itself is not used for debugging; it is a tool for design and planning. 'To compile the program into binary' is incorrect as pseudocode is not compilable; it is merely a human-readable description. 'To encrypt the program's code' is also incorrect since pseudocode has nothing to do with encryption; it is meant for readability and clarity of program logic.