The starting compounds needed to make the following compound ?

A. Fehling’s reagent

B. Grignard reagent

C. Schiff’s reagent

D. Tollen’s reagent

A. trimethylacetaldehye

B. acetaldehyde

C. benzaldehyde

D. formaldehyde

A. acetone

B. ethanol

C. diethyl ketone

D. isopropyl alcohol

A. $$\mathop {C{H_2}}\limits^{{\delta ^ - }} = CH - \mathop {CH}\limits^{{\delta ^ + }} = O$$

B. $$\mathop {C{H_2}}\limits^{{\delta ^ - }} = CH - CH = \mathop O\limits^{{\delta ^ + }} $$

C. $$\mathop {C{H_2}}\limits^{{\delta ^ - }} = \mathop {CH}\limits^{{\delta ^ + }} - CH = O$$

D. $$\mathop {C{H_2}}\limits^{{\delta ^ + }} = CH - CH = \mathop O\limits^{{\delta ^ - }} $$