Question: Which of the following SQL correctly creates the foreign key(s) in table PLANE INVENTORY? ALTER TABLE [PLANE INVENTORY] ADD CONSTRAINT FK1 FOREIGN KEY (manufacturer) REFERENCES

Which of the following SQL correctly creates the

Which of the following SQL correctly creates the foreign key(s) in table PLANE INVENTORY? ALTER TABLE [PLANE INVENTORY] ADD CONSTRAINT FK1 FOREIGN KEY (manufacturer) REFERENCES AIRPLANES (manufacturer) , CONSTRAINT FK1 FOREIGN KEY (model) REFERENCES AIRPLANES (model) . CONSTRAINT FK1 FOREIGN KEY (variant) REFERENCES AIRPLANES (variant) ; ALTER TABLE (PLANE INVENTORY] ADD CONSTRAINT FK1 FOREIGN KEY (manufacturer, model, variant) REFERENCES AIRPLANES (manufacturer, model, variant) ; ALTER TABLE (PLANE INVENTORY] ADD CONSTRAINT FK1 FOREIGN KEY (manufacturer, model, variant) ; ALTER TABLE AIRPLANES ADD CONSTRAINT FK1 FOREIGN KEY (manufacturer, model, variant) REFERENCES (PLANE INVENTORY] (manufacturer, model, variant)

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