Jack: "let's go to the movies at cineplex after class. we have to get out of this building anyway." what type of cause is jack implying by saying they "have to" leave the building?
a. cause as necessary condition.
b. cause as sufficient condition.
c. cause as necessary and sufficient condition.
d. contributory cause. primary cause.
e. none of the above.

The correct answer is:

C. Cause as necessary and sufficient condition.

Explanation:

In this case it is possible to say that to develop the activity proposed by Jack one event needs to happen (they need to leave the building), so the second event can take place (Go to the movies). The first event has to happen anyway, after class they will leave, to go home, to find a friend, or to go to the cinema, this would represent the cause as sufficient condition by itself and accompanied of the second event it combines the two causal conditions.

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