Explanation:

- Sumanth starts by walking 200 feet straight north from his house.

- He then walks 100 feet back in the south direction, bringing him 100 feet north of his starting point.

- Next, he takes a left turn. Since he is facing south at this point, a left turn means heading east.

- He walks 300 yards east. Convert this to feet: 300 yards = 900 feet.

- Now, he is 900 feet east and 100 feet north of the original position.

Therefore, the correct direction is:

- Option:2, North-East