Consider the following statements.
(i) Transition metals occupy group-3 to group-12 of the modem periodic table.
(ii) Representative elements occupy group-3 to group12 of the modem periodic table.
(iii) Except group-11 elements of all transition metals are hard. (iv) d-block elements are mostly non-metals.
Which of the above statements is/are incorrect?
(a) (ii) and (iv)
(b) (i) and (iii)
(c) (iii) only
(d) (i) only
