Which of the following orders regarding the base strength of a leaving group in a reaction of an acid derivative with a nucleophile is correct :

Options

A. `Cl^(o+)gtRCOO^(o+)gtRO^(o+)`
B. `Cl^(o+)gtRO^(o+)gtRCOO^(o+)`
C. `RO^(o+)gtRCOO^(o+)gtCl^(o+)`
D. `RO^(o+)gtCl^(o+)gtRCOO^(o+)`

Answer

C