A clue to cause and effect would be the word "since" as it starts a cause for something,a reason for something to happen
Answer: Athena and Poseidon vied for control of Athens and its surrounding territory, Attica. The contest took place on the Acropolis. Poseidon struck the rock with his trident and produced a salt spring or a horse. Athena brought forth an olive tree from the ground by the touch of her spear and she was proclaimed the victor.
Explanation: GOOGLE
I believe the answer is C. thorough.
It's all about context clues. Careful is most similar to thorough and makes the most sense.
Answer:
D
Explanation:
help them out by communicating
