Final answer:
The icon that doesn't display to the right of a selected chart is the 'Chart Title'. It is instead an option within the 'Chart Elements' menu.
Step-by-step explanation:
When a chart is selected in applications such as Microsoft Excel, several icons appear on the right side to assist in customizing the chart's appearance. These icons include Chart Elements, Chart Styles, and Chart Filters. Of the options given in the question (a) Chart Elements, (b) Chart Title, (c) Data Labels, and (d) Axis Titles — the one that does not typically appear as an icon is Chart Title. Instead, the Chart Title is an option that can be added or edited within the Chart Elements menu.