Ais used to spin the clay while the ceramicist shapes it into a form, where as a is used to fire, or heat the clay.
a.(1) clay spinner; (2) roaster
b.(1) potters wheel; (2) kiln
c.(1) kiln; (2) glaze
d.(1) meander; (2) slip over

The answer to the question is B. potters wheel; kiln. A potters wheel is a device that a ceramicist can use to shape the clay into whatever figure they desire. After the clay is molded it is put into a hot oven called a kiln. The heat from the kiln removes excess water from the clay and helps to harden it into a durable figure.