For the following sequence of reactions. The correct option regarding the products is/are:
Pure enantiomeric acid + optically active alcohol having chiral C atom → ?
Which of the following statements is correct regarding the chirality (optical isomerism) of the cis and trans isomers of the type M(aa)2b2 (M stands for a metal, a and b are achiral ligands and aa is a bidentate ligand) ?