Final answer:
Rose is 20 places to the left of Amy, who is 21st from the left, making Rose 1st from the left end. The correct answer is option (d).
Step-by-step explanation:
To determine the position of Rose in the row, we can first place Amy, Emma, and Peter according to the information given. Emma is 36th from the left, so Peter, being 20 places to the left of Emma, would be in the 16th position from the left. Amy is seated 20 places to the right of Rose, which would place Rose 20 places to the left of Amy's position.
Since Amy has 4 people between herself and Peter, Amy is 5 places to the right of Peter. If Peter is in the 16th position from the left, Amy would be in the 21st position. Therefore, Rose needs to be 20 places to the left of the 21st position, which would make Rose the 1st from the left end. Thus, the correct answer is d. 1st from the left end.