My opinion is the answers A and D. I would choose A if you can only choose one, though.
Answer: dynamically modified model
Explanation:
Answer:
First: work out the difference (increase) between the two numbers you are comparing.
Increase = New Number - Original Number.
Then: divide the increase by the original number and multiply the answer by 100.
% increase = Increase ÷ Original Number × 100.
Explanation:
The answer to this question would be algorithm animation.
Since the algorithm is animate, then you will be able to watch it works. Watching the algorithm executed can give you much information, what the algorithm does and how the algorithm does it.
Normally you will not be able to do this since the algorithm only do what it needs to do without reporting the detail to you