Concept:Suratul Ikhlas is the chapter of the Quran that entirely focuses on the oneness and uniqueness of Allah (Tawheed).
Explanation:Suratul Ikhlas (Chapter 112) expresses the unity of Allah in its most direct form.
Its first verse declares, "Say: He is Allah, the One," which affirms Tawheed clearly.
The surah proceeds to describe Allah as As-Samad (Self-Sufficient, Eternal), and states that He neither begets nor is born, and that none is equal to Him.
The Prophet Muhammad (SAW) said that Suratul Ikhlas equals one-third of the Quran because of its complete declaration of Allah's essence.
Looking at the other options: Suratul Kafirun deals with disavowing false worship, Suratul Qadr mentions the Night of Majesty when the Quran was revealed, and Suratul Falaq is a prayer seeking refuge from evils.
None of these focuses primarily on the unity of Allah as Suratul Ikhlas does.
Answer:C. Ikhlas