阅读理解。阅读下列短文, 从给的四个选项 (A、B、C和D) 中, 选出最佳选项。
Morocco is located at the northwest of Africa and is bordered in the north by the strait of Gibraltar and the Mediterranean Sea.The Atlantic Ocean keeps the west and the north of the country more temperate (温和的)．The country also offers the broadest plains，some of which run along the Atlantic Ocean and the highest mountains in North Africa including the Atlas Mountains.
Starting with the symbol of Morocco，Marrakech is a beautiful city that has remained unspoiled by the volume of tourists that flock there each year.One of the finest monuments in Morocco is greatly benefited by this amount of tourism.Actually their high volume contributes in a positive way to preserving one of the greatest monuments of Morocco.
