Answer:
Option C, 3the rice only diet may lead to malnutrition
Step-by-step explanation:
Even though villagers have enough amount of rice to feed everyone but only rice consumption may lead to deficiency of several vital nutrients. Rice being rich in carbohydrate can only fulfill carbohydrate requirement, while body along with carbohydrate also need proteins, vitamins, fibers etc. which these villagers are devoid of. Hence, in this way villagers may soon face the issue of malnutrition.
Hence, option C, the rice only diet may lead to malnutrition