Which of the Following Is a True Statement About Children's

Which of the following is a true statement about children's ability to mask emotions?

A) Boys and girls do not differ in their ability to read masked emotions.
B) There are not wide variations across cultures in the age at which children learn about masking emotions.
C) Children are unable to mask their emotions during the early childhood years.
D) Preschool-age children acquire the ability to recognize when someone is masking his feelings.