Answer:
Option C is correct for me
Step-by-step explanation:
A video is a visual representation of your work and believe me it has a way of attracting attention and it brings utmost understanding (if it is represented well).
Other than option A. a colourful pie chart which others may not see as interesting to view
Or
Option B. A diagram would be seen as a usual and wouldn't be well accepted or captivating by their senses
Or
Option D. A drawing. Please remember that some viewers senses may be slow in processing vital information demonstrated in a drawing
But with the aid of a video, the senses come alive and anticipate for the next move
I hope I have helped you please do well comment if it was helpful.