Answer:
A. The organism would not be able to function properly.
Explanation:
In relation to living organisms, a system consist of several organs that are working together to achieve a single aim. The system is a form of division of labour among several organs.
The main aim of the digestive system is to carryout digestion of food. Through digestion, organism is able to extract nutrients and energy necessary for other metabolic activities.
Hence, if the system fails to work properly, the organism will not be able to carryout digestion and this will affect the overall function of the organism.
The correct option is A.