<prompt>  The contact area on the distal surface of a maxillaryfirst premolar should be placed in:Middle 3rd of proximal surface with lingual embrasure greater than the facial embrasureOcclusal 3rd of proximal surface with the lingual embrasure greater than facial embrasureOcclusal 3rd of proximal surface with facial embrasure greater than lingual embrasureMiddle 3rd with facial embrasure greater than the lingual embrasure 