Task: Question Answering
Input (English): Question: The heritability of a personality trait: 
 Options:  <1> It is a statistical concept to estimate the influence of phenotypes on genotypes, regardless of the environment. <2> It is generalizable to all humans, regardless of the culture and the historical moment. <3> It calls into question the ability of the environment to modify the genetic endowment. <4> It is studied, among other perspectives, from molecular genetics. <5> It refers to the direct influence of paternal and maternal genes on the behavior of an individual.
Output (English): 4