Concept:A diagrammatic representation shows information visually using symbols and arrows. An algorithm is a set of step-by-step instructions, and its diagrammatic form is called a flowchart.
Explanation:The options include pseudocode, code, graphics, and flowchart.
Pseudocode is a text-based description of an algorithm using plain language, not a diagram.
Code is made up of programming instructions written for a computer to execute, also not a diagram.
Graphics is a general term for any visual element, so it is not specific to algorithm representation.
A flowchart is a specially designed diagram that represents an algorithm.
It uses boxes for process steps, diamond shapes for decisions, and arrows to show the correct order of execution.
Because the question specifically asks for the diagrammatic representation, flowchart is the correct answer.
Answer:D. flowchart