Answer:
e. “…but as the tailor used black thread, all beans since then have a black seam.”
Step-by-step explanation:
Cause and Effect is a situation or relationship in which occurrence of one event is result of some other event. It is action and reaction situation.
Option A, B, C, and D do not have any cause of events described in these options.
Option E has a cause (the tailor's use of black thread) and an effect/result of this event (all beans have black seam). So only this option uses cause and effect relationship.