The correct statement about the following disaccharide is

Question

$\begin {array} {1 1} (A)\;\text{The ring a is pyranose with $ \alpha$ -glycosidic link}\\ (B)\;\text{The ring a if furnose with $ \alpha$ -glycosidic link} \\ (C)\;\text{The ring b is furanose with $ \beta$ -glycosidic link}\\ (D)\;\text{The ring b is pyranose with $ \beta$ -glycosodic link} \end {array}$