Which family of elements has solid, liquid, and gaseous members at 25∘C and 1atm pressure?<spanclass=′latex−bold′>(A)</span>alkali metals (Li-Cs)<spanclass=′latex−bold′>(B)</span>pnictogens (N-Bi)<spanclass=′latex−bold′>(C)</span>chalcogens (O-Te)<spanclass=′latex−bold′>(D)</span>halogens (F-I)