which book is best for ssc cgl?

Correct option is A

here isn’t just one book- different books are best for different subjects. For English, Plinth to Paramount by Neetu Singh or Adda247’s English book is great. For Quant, R.S. Aggarwal and Advance Maths by Rakesh Yadav are highly recommended. For Reasoning, Lucent Reasoning and Kiran SSC Reasoning help a lot. For General Awareness, Lucent GK and daily current affairs from Adda247 are useful. Stick to a few good books and revise them thoroughly. Don’t collect too many resources- choose wisely and practice more. Also, solve previous year papers regularly