Which of the following are types of procedures? Select all the options that apply.

A) Sub
B) Function
C) Declaration
D) Event

Sub

A Sub, short for Subroutine, is a sequence of program instructions that perform a specific task, packaged as a unit. It can be executed from multiple places within a program.

Function

In programming and software, a reusable block of code designed to perform a specific task or calculation, identified by a unique name.

Declaration

In programming, a declaration is a statement where a variable or function is defined, specifying its type and name, without necessarily allocating storage or assigning a value.