Answer: D) a concept
Explanation:
Manifest Destiny was an idea that the United States had the right, by God, to expand westward through North America.
According to Oxford Languages idea is a synonym to a concept so D would be the best choice.
Let the food in the boy's home be : F
Given : This food is sufficient for 50 children for 12 days


Given : There is an increase of 10 more children
It means : Total children = 60




<u>Answer:</u> The food is sufficient for 10 days