Translate the following English sentence to French:
"In this connection, I would refer to the final report of the working party on "multilingualism" , compiled under the guidance of Mr Cot, in which various specific options have been suggested."
À cet égard, je vous renvoie au rapport final du groupe de travail "plurilinguisme" dirigé par M. Cot, dans lequel plusieurs options concrètes sont suggérées.