C. Enforcing immigration laws.
Well, we discovered that we needed to upgrade security so that potential criminals weren't coming into our country, and so potentially harmful substances weren't being brought onto our planes. That meant literally anything that could become a bomb, start a fire, stab someone etc. As for Pearl Harbour, I think that had more of an affect on how we thought our military and defence system was working.
The answer is B, because he wrote it himself, about what he planted.
The Phoenicians had a great sea trading empire. They were very famous for many things including the alphabet, cedar ships, and purple cloth. They were very involved in trade, art, and religion. Phoenicia was an ancient civilization.