Deficiency of vitamin B12 can be diagonised by

Q. Deficiency of vitamin B12 can be diagonised by
A. Carr-Price reaction
B. Ames assay
C. Watson-Schwartz test
D. Schilling test
Answer: Schilling test

A. Carr-Price reaction
B. Ames assay
C. Watson-Schwartz test
D. Schilling test
Answer: Schilling test