The correct option is
A A - 4, B - 3, C - 2, D - 1
So the correct answer is 'A-4, B-3, C-2, D-1'.
A. Scotoactive stomata | 4. Night Transpiration (when stomata opens up in the absence of light it is known as scotoactive, while in the presence of light it is known as photoactive) |
B. Guttation | 3. Water loss in the liquid phase (it is the process which occurs at night when there is minimal transpiration, plants lose excess water in the form of droplets from their pores) |
C. Tensile strength | 2. Transpiration (the tensile strength of water helps prevent any break in the flow that is generated during transpiration and hence supports it) |
D. K+ | 1. Opening and closing of photoactive stomata (when K+ get accumulated in the guard cells, it starts absorbing water and the stomatal pore opens up). |