The answer is 4. Someone may disagree that this was his major accomplishment. And the other options are stated as fact
since i dont have the map i cant answer the first half but Persia massive size would be a problem for Athens and Sparta however the Persians lost was their infantry is in poor quality compared to the Greek hoplites the Persian warrior is meant to engage targets on th opens planes of Asia and the middle east thats why they wore light to no amour also with Athens and Sparta at war with one another Xerxes thought they would not rally together and he could take them one at a time
Answer:
By late 1973, the Watergate scandal escalated, costing Nixon much of his political support. On August 9, 1974, he resigned in the face of almost certain impeachment and removal from office—the only time an American president has done so.
Hope this helps.
emeralds are the conflict