The correct option is
C ![](https://df0b18phdhzpx.cloudfront.net/ckeditor_assets/pictures/1387514/original_Untitled_drawing_-_2021-10-15T195547.565.jpg)
Let's discuss all the options one by one:
Option (a).
![](https://df0b18phdhzpx.cloudfront.net/ckeditor_assets/pictures/1387512/original_Untitled_drawing_-_2021-10-15T195446.838.jpg)
In this graph, population of United States decreased with time, which is not the given scenario.
Option (b).
![](https://df0b18phdhzpx.cloudfront.net/ckeditor_assets/pictures/1387513/original_Untitled_drawing_-_2021-10-15T195518.305.jpg)
In this graph, population increases with time, but again it starts decreasing, which is not the given scenario.
Option(c).
![](https://df0b18phdhzpx.cloudfront.net/ckeditor_assets/pictures/1387514/original_Untitled_drawing_-_2021-10-15T195547.565.jpg)
In this graph, population of United States always increases with time.
Hence, This best represents the given scenario.
(d).
![](https://df0b18phdhzpx.cloudfront.net/ckeditor_assets/pictures/1387515/original_Untitled_drawing_-_2021-10-15T195640.580.jpg)
In this graph, population increases with time, but again it starts decreasing, which is not the given scenario.
Hence, option (c) is the correct choice.