Good coding practice dictates that elements within a statement should be separated by a space to make the statement easier to read, even though the space is not required.

There are many programming languages, and each one requires a unique set of ____ to code a program.

A. letters B. modus operandi C. techniques D. numerals

The IDL union type can be used for a parameter that will need to pass one of a small number of types. Use it to define the type of a parameter that is sometimes empty and sometimes has the type Value.

What will be an ideal response?