The given diagram shows a respirometer that is used to measure gaseous exchange in gram seeds. The apparatus is maintained at a constant temperature. Which of the following is correct regarding it?(i) The gas pressure at X will fall as \[{{O}_{2}}\] is absorbed during respiration and\[C{{O}_{2}}\], is absorbed by potassium hydroxide solution.(ii) The fluid level at Y will fall to compensates the loss of pressure in X.(iii) The gas pressure at X will rise as 0;, is given out by seeds and \[C{{O}_{2}}\] is released by potassium hydroxide ;solution. (iv) The fluid level at Z will rise due to loss of pressure at X.

• A. (i), (ii) and (iv) only      
• B. (ii), (iii) and (iv) only                  
• C. (i), (iii) and (iv) only                  
• D. (i), (ii) and (iii) only