Your friend says he read a newspaper article suggesting researchers identified a gene for laziness. How would you explain to him why this article is misleading? a. Candidate-gene studies cannot be done for behavioural traits like laziness.b. Concordance rates for laziness are too low to yield good genetic data.c. It is unlikely that a single gene is responsible for a complex behaviour like laziness.d. Heritability estimates are too unreliable to draw such a conclusion.