The melting and boiling points of four different substances are shown in the table. The room temperature is 30°C.
Which of the following statements are incorrect about the data given in the table?
(i) Substance P is in solid state at room temperature.
(ii) Substance Q is in liquid state at room temperature.
(iii) Substance R is gas at -150°C and solid at -220°C.
(iv) Substance S is in solid state at room temperature.
A(i) and (ii) only
B(i), (ii) and (iii) only
C(iii) and (iv) only
D(i), (ii), (iii) and (iv)