Callie's parents bought her a used bicycle for her birthday. She was thrilled until she learned her best friend received a brand new bicycle to celebrate Groundhog Day. Callies declining satisfaction illustrates the .

Relative deprivation

Explanation:

Relative deprivation is when someone feels he is being deprived of what is provided or readily available to some other people.

Callie started feeling deprived as soon as she noticed her best friend was given a better gift than her's.

answer; elasticity of the lungs decreases;