The brain size of the Neanderthal man was:

The correct answer is Option (2) → 1400 cc

Option (2) 1400 cc — Correct. The Neanderthal man had a brain size of about 1400 cc. This is the largest of the brain sizes NCERT gives in human evolution.

Note: A similar question was also asked in CUET (UG) 2023 on 02-07-2023 (Slot 3), on 09-06-2023 (Slot 3) and on 05-06-2023 (Slot 1).

NCERT Extract:
Origin and Evolution of Man – “… Homo erectus probably ate meat. The Neanderthal man with a brain size of 1400cc lived in near east and central Asia between 1,00,000-40,000 years back. They used hides to protect their body and buried their dead.”