Respected Seniors, CSPs and Senior Aspirants.

I am ACCA affiliate and a css aspirant as well.I have questions regarding selection of new subjects as per revised syllabus. I have opted subjects of 500 marks. Now, I am stuck in selection of final subject of 100 marks. As per the syllabus, Psychology and sociology are of 100 marks. I have checked revised syllabus, Past papers, and scoring trend of both subjects. I found both subjects of equal importance and interest. so , kindly help in in selection final subject from subject mentioned above.

My optional subjects are
1. Group 1 - Accounting - 200
2. Group 3 - Business Administration - 100
3. Group 4 - History of Pakistan and India - 100
4. Group 6 - Mercantile Law - 100
5. Group 7 - sociology/psychology - 100 - - Under consideration.