The following SQL querySELECT P$.$pnameFROM Parts P$,$ Catalog C$,$ Suppliers SWHERE P$.$pid $=$ C$.$pid AND C$.$sid $=$ S$.$sidAND S$.$sname $=$ 'Acme Widget Suppliers'AND NOT EXISTS $($ SELECT $*$FROM Catalog C$1,$ Suppliers S$1$WHERE P$.$pid $=$ C$1.$pid AND C$1.$sid $=$ S$1.$sidANDS$1.$sname $<>$ 'Acme Widget Suppliers'$)$has the equivalent English query: a$.$ The pnames of parts supplied by Acme Widget Suppliers and no one else. b$.$ The pnames of parts supplied by Acme Widget Suppliers. c$.$ The pnames of parts supplied by Acme Widget Suppliers and someone else. d$.$ The pnames of parts not supplied by Acme Widget Suppliers. None of the above