Which functional group is found in methyl ethanoate?

A central carbon is double bonded to O above, and single bonded to R below left and to R below right.

A central carbon is double bonded to O above, and single bonded to R below left and to O R prime below right.

A central carbon is double bonded to O above, and single bonded to R below left and to H below right.

A carbon is bonded to R to the left, C O O H above right, H to the right, and N H 2 below right.