Which tab is not available on left panel when you open a presentation?

Answer: Option C

The correct answer is C: Notes
Here's why:
When you open a PowerPoint presentation, the left panel is primarily used for navigation and viewing your slides.
Option A: Outline - The Outline tab shows the text content of your slides, allowing you to quickly navigate and edit the text. It's a standard view.
Option B: Slides - The Slides tab displays thumbnails of each slide in your presentation, enabling you to easily jump to a specific slide. This is also a standard view.
Option C: Notes - The Notes section is usually located *below* the slide view, not in the left panel. It's where you can add speaker notes for each slide. Therefore, the Notes tab isn't on the left panel.
Option D: All of above are available - Since Notes is not available on the left panel, this option is incorrect.