Answer:
.D) Greg will be unable to predict Jimmy's emotion.
Step-by-step explanation:
This is because, at the age of 2, Greg is able to express his feelings appropriately. For example, he would know when to laugh or feel shame depending on the situation.
In the case of Jimmy, Greg would be unable to predict Jimmy's emotions as a result of not seeing him to read his facial cue which would help for adequate understanding of what was felt.