Very high respiratory activity is seen in

Answer: Option C

Very high respiratory activity is seen in Spinach.
Spinach is an annual, cool-season, green, leafy vegetable that is rich in health-promoting compounds, such as vitamins A and C and flavonoids.
The respiration rates of spinach leaves during storage in a 14.69-l chamber with different amounts of O₂ per unit mass of spinach: O₂ consumption rate and CO₂ production rate.
Spinach has relatively high respiration and water-loss rates, and is prone to tissue decay, microbial growth, and loss of nutrients, all of which lead to a low storage potential.