Since after division of a number successively by 3, 4 and 7, the remainders obtained are 2, 1 and 4respectively, the number is of form ((((4*4)+1)*3)+2)k = 53K.Let k = 1; the number becomes 53If it is divided by 84, the remainder is 53.Hence Option D is correctFor Complete syllabus ofQuant for CATclick on the link given below:Quantitative Aptitude (Quant)https://edurev.in/courses/3074_quantitative-aptitude--maths--prep-tests--videos-