According to Kohlberg, Which of the Following Children's Behavior on Piagetian

According to Kohlberg, which of the following children's behavior on Piagetian conservation tasks is likely to have achieved gender constancy?

A) Melinda, who believes that a row of pennies that has been spread out has more pennies than it originally did
B) Alicia, who intently watches the liquid being poured from one container to another to understand where the extra liquid is going
C) Jasmine, who states that a ball of clay that has been rolled out into a hot dog shape has less clay after the change
D) None of these show that the child has achieved
gender constancy.