Find the structures of Compounds A, B, C and D. Draw structures that include stereochemistry where applicable

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i Leon + OH Compound D, C6H1004 (optically inactive) (products similar to ozonolysis ones but oxidizes aldehydes to carboylic 1. hot KMnO4 2. H30* Na, NH30 H2, Lindlar's catalyst ** (4R, 5E)-4-ethyl-2,4-dimethyl-2,5-heptadiene Compound B, C1H20 (optically active) Compound A, C11H18 (optically active) 1. O3 2. Mezs + + OH Compound C, C6H1003 (optically active)