Multiple choice technology programming languages

Which of the following statements about PL/I programs are TRUE?

  1. a program must always begin with a PROCEDURE statement and end with an END statement

  2. PL/I instructions can be coded between positions 1 and 72

  3. you have to declare each variable that you are going to use

  4. a program can be composed out of different procedures

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Every executable PL I program requires a PROCEDURE statement with OPTIONS MAIN to start and an END to terminate. Code is written in columns 2 72, variables need not always be declared due to default typing, and while procedures can contain internal procedures, the main program structure is what option A describes.