Answer: c. Low
Step-by-step explanation:
Low food security can be define as the times, the food intake of the members of the household get reduced and their daily eating patterns are also affected. This occurs due to the fact that the household lacks finance and other resources to purchase the food.
The given situation is the example of low food security as the child's meal size is reduced and other members did not eat regularly hence, the daily eating pattern of the family is affected.