The best technique to show your boss the presentation would be to use a screen sharing service to show the presentation while you discuss it. This would allow your boss to see the presentation as you talk through it and ask any questions that they may have in real-time.
Group of answer choices may not provide enough information or context for your boss to fully understand the presentation, and it may also be difficult to convey certain details and visual elements through text alone.
Emailing the presentation could work, but it may be difficult for your boss to fully understand the presentation without the benefit of your explanation and commentary.
Describing the presentation in detail over the phone may also not be the most effective method, as it can be difficult to convey complex information and visual elements through verbal descriptions alone.
Using a screen sharing service allows for a more interactive and engaging experience, as you can navigate through the presentation together and address any questions or concerns your boss may have in real-time.