<prompt> A casting may fail to seat on the prepared tooth due to all of the following factors except ___.Temporary cement still on the prepared tooth after the temporary restoration has been removed.Proximal contacts of casting too heavytight.Undercuts present in prepared tooth.The occlusal of the prepared tooth was underreduced.  <response>: Occlusal reduction would not affect the ability to seat a casting. However, temporary cement, heavy proximal contacts, or tooth undercuts could keep the casting from seating completely. 