Based on Levy and colleagues' longitudinal study, which psychological factors were found to have a significant correlation with individuals' actual lifespan?

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The age at which parents passed away and an individual's desire to continue livingFeelings of generativity combined with having secure emotional bondsA positive outlook and a high level of openness to new experiencesHow individuals perceive the aging process along with their will to liveNone of the above

Explanation

Levy and colleagues' research revealed that people's perceptions of aging, together with their will to live, were significantly linked to their actual longevity. Other factors such as parental age at death, generativity with secure attachments, or optimism paired with openness did not show the same strong association.