I think it is A or B but it would be funny if it was D
I need some more info to answer this question
Answer:
Weber's law
Explanation:
Weber's law states that the change in a stimulus that will be just noticeable is a constant ratio of the original stimulus. It has been shown not to hold for extremes of stimulation. The ability to perceive a change in a quantity decreases in proportion to its magnitude.
Because mobile apps are exposed to viruses and they can take over your mobile device opening it up to malicious people who want your goodies