Multiple Choice
A researcher decides to measure happiness by the number of times a person smiles each hour.Which statement best describes how happiness and smiling are connected?
A) Both happiness and smiling are variables.
B) Both happiness and smiling are concepts.
C) Happiness is a concept and smiling a variable.
D) Happiness is a variable and smiling is a concept.
Correct Answer:

Verified
Correct Answer:
Verified
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