Correct option is A
SSC CGL has multiple papers depending on the Tier and post applied for. Tier 1 has one paper with 100 questions (25 from each subject: Reasoning, English, Quant, and General Awareness). Tier 2 has two compulsory papers: Paper 1 (Quant & Reasoning) and Paper 2 (English). Some posts require additional papers like Paper 3 (General Studies – Finance & Economics) or Paper 4 (Statistics). So, most candidates appear for at least two major papers in Tier 2. Overall, you may write 2 to 4 papers depending on your post preference.