Which of the following statements about the modern periodic table are incorrect ?
(a) The elements in Modern periodic table are arranged on the basis of their decreasing atomic number.
(b) The elements in Modern periodic table are arranged on the basis of their increasing atomic masses.
(c) Isotopes are placed in adjoining groups in the periodic table.
(d) The elements in the modern periodic table are arranged on the basis of their increasing atomic number.

Options

A. d
B. a,b,c
C. a
D. a,b,d