Hello aspirant,
Hope you are doing absolutely great.
So, with regard to your query, NO, it is not compulsory to opt the language from section 1B in CUET. You are subjected to opt from section 1B only in case if you wish not to opt anything from Section 1A, that means you can either opt a language from section 1A or from 1B. However, you can't remain without choosing anything from both sections, you should any language from either of them. It is mandatory.
Hope this helps you,
Thank you.
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