So
For any optional or gs there are 3 things that help you fetch marks
1. Your content. It should be qualitative integrated with some backings. Backings for gs will be given by facts data and figures reports, while for optional it will be from commentaries books and editorials.
2. Demand of the question. Address the demand and fetch average marks for sure. Don't write anything and everything. Your content should be in line with the question.
3. Flow of the answer. Whether it be essay, gs or optional. Your flow should be coherent. The answer should not be disruptive and examiner should not feel confused after reading your answer.
And also 4th point is critical thinking and taking middle path as conclusion. Conclusion should not be extremely leaning towards and ideology or taking a radical approach. It should be balanced with good annotations and way forward