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# The optically active tartaric acid named as $D-(+)-$ tartaric acid because it has a positive,

(a) Optical rotational and is derived from D-glucose

(b) PH in organic solvent

(c) Optical rotational and is derived from D-(+)- gluceraldehyde.

(d) Optical rotation only when substituted by deuterium

Any compound that can be prepared from, or converted into, $D(+)-$ glyceraldehyde will belong to D-series and any compound that can be prepared from, or converted into, L(-) glyceraldehyde will belong to L-series.
So correct answer is Optical rotational and is derived from D-(+)- gluceraldehyde.
Hence c is the correct answer.