What psychologist developed the hierarchy of human needs?

Abraham Maslow

Explanation: Abraham Maslow was an American psychologist who developed a hierarchy of needs to explain human motivation. His theory suggested that people have a number of basic needs that must be met before people move up the hierarchy to pursue more social, emotional, and self-actualizing needs

are there any letter choices to this or is this an open ended question?

its bassicly asking u   to answer it in your own words does that