The following are some statements about the characteristics of covalent compounds: (i) The compound formed by the combination of a metal and non-metal must be a covalent compound.
(ii) Most of the covalent compounds are gases at room temperature.
(iii) All organic compounds are covalent compounds. The correct combination is

Options

A. all are correct
B. only i and ii are correct
C. only ii and iii are correct.
D. all are incorrect