Four-year-old Kanaan's mother makes him a ham and cheese sandwich for lunch. However, Kanaan refuses to eat the sandwich, stating "not like cheese." When Kanaan's mother removes the cheese from the sandwich, he still refuses to eat and again states "not like cheese." This is an example of?

The answer is irreversibility.

Explanation:

Irreversibility is a stage in child development in which children think some actions cannot be undone. Another example would be deflating a balloon or a ball in front of a child. It is likely he will think the object is unusable now.

Experts point out that children get over this stage around age seven.

answer; positive reinforcement;