Combined pattern : It is used for mounting several pattern at a time.

Loose piece patterns : It is used when parts with internal webs are produced.

Sweep pattern : It is used when 2-D pattern used to produce symmetrical 3-D casting e.g. cone, bells of temples.

Match plate pattern :The match plate pattern is almost similar to the mounted pattern but it can have part of the casting in the cope and part in the drag like split piece pattern.

Hence, the correct option is (A).