Answer:
Option D, Reaction time, is the right answer.
Step-by-step explanation:
The term "reaction time" is used to refer to the amount of time it covers to react to a stimulus. In more simples terms, it is a measure of how fast an individual or an organism can react to a stimulus. This reaction time has been deeply studied and it has been observed that if its practical implications are not followed it may be of great consequence. For instance, if a person shows slower than normal reaction time while he is driving can cause grave consequences.