The compound, `C_(3)H_(6)O_(2)` is mixed with dilute solution of 2% Na OH containing a drop of phenolphthalein and boiled. The pink colour is discharged. The compound could be :
A. `HCOOC_(2)H_(5)`
B. `CH_(3)COOH`
C. `C_(2)H_(5)COOH`
D. either (a) or (b)
