im very confused pls explain each part

4) Answer questions about the compounds below (42pt). a) Choose the relationship between these compounds: (A.) diastereomers C. meso B. enantiomers D. identical b) Choose the relationship between these compounds: A. diastereomers C. meso B. enantiomers D. identical c) To confirm whether the Cl substituent is axial (ax) or equatorial (eq), it is recommended to draw: A. H(eq) at C with Cl(ax) C. H(eq) at C with F(ax) B. H(ax) at C with Cl(eq) D. H(ax) at C with F(eq) d) Choose the relationship between the Cl and F substituents: (Draw Newman if you need to.) A. gauche C. eclipsed B. antiperiplanar D. none