Which statement about fairy tales suggests an indirect cause

If your choices are the following:
A. Jack killed the giant because he sold the cow for magic beans.
B. Sleeping Beauty was warned to stay away from needles but did not listen.
C. Hansel and Gretel went out into the woods and ended up getting lost.
D. Cinderella lost her glass slipper on the stairs precisely at midnight.

Among the fairy tales, the story that suggest an indirect cause is Jack who killed the giant because he sold the cow for magic beans.
The magic bean that was traded with his cow grew into a large and gigantic beanstalk that is why he killed this.

The answer is letter a or the first option