Choose incorrect statement :

Options

A. `BaCO_(3)`is kept in the atmosphere of `CO_(2)` since, it is least thermally stable
B. `Be` dissolved in alkali forming `[Be(OH)_(4)]^(2-)`
C. `BeF _(2)` forms complex ion with NaF in which Be goes with cation
D. `BeF_(2)` forms complex ion with NaF in which Be goes with anion