KBC 2023| Which of these is a ‘gas giant’? KBC 2023, Check the answer to the question- Which of these is a 'gas giant'? By Himani Budakoti - September 4, 2023 KBC 2023, Amitabh Bachchan. (Representative Image) KBC 2023, The options of the question – Which of these is a ‘gas giant’? A. Mercury B. Neptune C. Mars D. Venus The answer is B. Neptune.