The following SQL querySELECT DISTINCT C$.$sidFROM Catalog CWHERE NOT EXISTS $($ SELECT $*$FROM Parts PWHERE P$.$pid $=$ C$.$pid AND P$.$color $<>$ 'Red'"$)$has the equivalent English query: a$.$ The sids of suppliers who supply parts the color of which is anything but red. b$.$ The sids of suppliers who do not supply red parts.O c$.$ The sids of suppliers who supply every red part.O d$.$ The sids of suppliers who supply only red parts. None of the above