D. Eustress is supposed to be positive stress, helping you to be motivated and alert. Eustress can help you when you are studying for a test or in other cases where you need to succeed. With Eustress, you can be motivated to create a plan to budget your time to study for a test, or to practice for an oral presentation etc. However, if you do feel nervous, anxious, confused, you might want to consider this type of stress to be more negative than positive.