Cohesion–tension theory explains water transport based on:
That points to C: Physical properties of water. Compared with the other options, Physical properties of water is the one that correctly describes the WATER TRANSPORT concept. The wrong ones are A) Living cell activity; B) Osmotic pumping; D) Root metabolism. If you’re stuck, eliminate anything that contradicts a basic fact you already know for this topic.
Ref: Best CSIR NET Plant Physiology books: Master Unit 6 with Taiz & Zeiger and Salisbury & Ross. Crack Part C experimental questions with top textbooks.