The composition of white precipitate when tartaric acid solution is added to a solution containing ${\mathrm{K}}^{+}$ is

The composition of white precipitate when tartaric acid solution is added to a solution containing ${\mathrm{K}}^{+}$ is$\begin{array}{l}\mathrm{CH}\left(\mathrm{OH}\right)\mathrm{COOH}\\ \text{ I }\\ \mathrm{CH}\left(\mathrm{OH}\right)\mathrm{COOK}\end{array}$

a crystalline organic acid found mostly in unripe grapes that is used as an ingredient in baking powder and other foods.

Hence option B is correct