Which of the Following Is the Best Example of the Joint

Which of the following is the best example of the joint functions of maturation, learning, and the active individual?

A) Jackson was frightened by a collie when he was a toddler.Now, as a preschooler, whenever he sees any type of dog he whimpers in fear.
B) Ji-hye sat before she crawled and crawled before she walked.
C) Noah was a cheerful, happy baby whose parents loved to make him gurgle and smile.So, whenever Noah saw his parents he smiled and wriggled so they would come over and tickle and cuddle him.
D) Mia's mother neglected Mia because Mia looked like her father, who had abandoned the family.