The correct answer is B) Controlling the waterways and trade on the Greek peninsula would make Persia even more wealthy and powerful.
Darius I decide to invade the Greek peninsula because controlling the waterways and trade on the Greek peninsula would make Persia even more wealthy and powerful.
We are talking about a time in ancient history called the Persian Wars. In this case, the first invasion of the Greek peninsula started in 492 BC. King Darius tried to punish Athens, considered to be the most powerful city-state in Greece. The reason? Athens had backed Iona when it started a rebellion against Persian rule. The other reason for the invasion was that King Darius wanted to increase his power and control of the region and expand his lands to western Europe.
In the end, Athens defeated the Persian Army in 490, in the famous Battle of Marathon.