What is a foreign key? a. A foreign key is a primary key of a relation which is an attribute in another relation b. A foreign key is a superkey of a relation which is an attribute in more than one other relations c. A foreign key is an attribute of a relation that is a primary key of another relation d. A foreign key is the primary key of a relation that does not occur anywhere else in the schema

given the lack of choices, i'm gonna wing it and say that pushing your car off a cliff might not be the best idea. your car might sustain damage from the fall and will probably result in the car being too damaged to jump start.

if that's not good enough, avoid filling the car with bees. bees might get agitated when trapped or during the moving process, and might result in death or painful stings that will make jump starting your car very difficult. but in the event that you do choose to fill your car with bees, remember to wear protective gear!