The answer is b, chloroplast.
Hyponatremia is a condition where the concentration of sodium is abnormally low in the body. Sodium acts as an electrolyte that helps in maintaining the amount of water in the body.
Extremely low amount of sodium in the body leads to weakness, headache, etc. During periods of intense activity body releases vasopressin hormone that helps body to retain water. Endurance athletes become vulnerable to developing hyponatremia because these athletes during water during strenuous exercises. This makes the concentration of sodium low in the body by diluting it with more water.This may lead to hyponatremia.
The image below may help you (ʘᴗʘ✿)...
C. Food Processor
Explanation - Food processor is an appliance used in the kitchen that performs multiple purposes like blending, chopping, slicing etc. It makes the preparation of food very easy. Depending on the blades attached to the processor, the working of it varies.
It is also very convenient to use and does not require liquid for doing its purpose like electric blender. It is an electricity based device. It works only when the lid is properly closed to ensure there is no spillage of food and the device is safe to use.
