Which sentence contains reportive كَمْ rather than a question?

Interrogative Sentences and Nouns

• كَمْ تَرَكُوا مِنْ جَنَّاتٍ وَعُيُونٍ
• كَمْ كِتَابًا عِنْدَكَ
• كَمْ سَنَةً عُمْرُكَ