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vearning,com/ihub/assessment/188d950-dd73-1tc0-9572-0800200c9se8/2b00145b-5ce8-4860-0287-es48a26188/1/88194 0 pts 1600 Question 1 of 6 OMacmillan Learning Regarding the stability of temperament across the life span, researchers have found that:

those people with the widest smiles tended to have shorter marriages.

those with the widest smiles are the most likely to have enduring marriages.

one in three of those people with the widest smiles tended to divorce.

those people with weaker smiles tended to have longer marriages.