Hey.

The Syllabus of CLAT includes a total of 5 sections. Here is the section wise syllabus of CLAT-

1. General Knowledge and Current Affairs- 50 questions for 50

2. Legal Aptitude- 50 questions for 50 marks

3. English- including Comprehension questions 40 for 40 marks

4. Logical Reasoning- 40 questions for 40 marks

5. Elementary Mathematics-20 question for 20 marks.

Hence, the choice of your subjects in Humanities stream will not affect your performance in CLAT as the syllabus is very different. The syllabus also includes Static GK in The first section which might include basics of History, Geography,Political science. So on considering this Political science and history will be more helpful to you. But you can easily manage CLAT without it too. So the choice must be based on your area of interest as it would not affect your CLAT preparation much

Best of luck