Concept:Quran 17:24 directs an obligatory duty of humility, mercy, and supplication specifically toward one's parents.
Explanation:The verse reads: "And lower unto them the wing of submission and humility through mercy, and say: 'My Lord! Bestow on them Your Mercy as they did bring me up when I was small.'"
This command appears immediately after Allah forbids disrespectful words or shouts toward parents, showing that kind treatment of them is a binding duty.
The pronoun "them" in the verse refers to the father and mother, not to other categories of people.
While Islam also teaches care for the wayfarer, orphan, and needy, this particular verse is devoted to the rights of parents.
Therefore, the obligatory duty mentioned in Q17:24 is to the parent.
Answer:C. Parent