Step 1: Understanding the Concept
Maltose is a reducing disaccharide made of two \(\alpha\)-D-glucose units.
Step 2: Linkage
C-1 of one glucose joins C-4 of the other through an oxygen bridge.
Step 3: Conclusion
This is an \(\alpha\)-1,4 glycosidic linkage.
Final Answer:
Maltose has an \(\alpha\)-1,4 glycosidic linkage.
\[ \boxed{\text{(A) }\alpha -1,4} \]