Ian just learned his final grade in history. he was upset because he thought he was going to do better and called his mother to tell her about it. his mother then contacted the professor (without ian's permission or knowledge) to ask that ian's grade be changed because he had worked really hard in the class, or at least that he be given a chance to retake the final test. in this example, ian's mother is a parent. a. supportive b. vigilant c. hovering d. helicopter

D. helicopter

Explanation:

Helicopter parents are called like that because they pay extreme atenttion and get involved in things that nobody asked them to get involved with, they are called helicopters because they hover around their childrens affairs specially at school, where they want to be involved in everything and even doing what Ian´s mom did of asking the professor to raise Ian´s grades.

yes, since there is a positive and a negetive if the positive and negitive wasn't there wouldn't a flow electricity in it.