Individuals with Younger Siblings Are More Likely to Lie (O'Connor

Individuals with younger siblings are more likely to lie (O'Connor & Evans, 2018) . What does this mean in terms of social-cognitive development?

A) Having siblings is associated with more advanced theory-of-mind performance.
B) Parents must be the sole promoter of social-cognitive skills for this to be true.
C) Individuals with or without siblings will learn to lie at an early age.
D) Only those with advanced theory-of-mind learn to lie young, regardless of siblings.
E) Children likely to lie can only do so if children have been exposed to mental state talk.