Choose two sentences where the author compares or contrasts ideas.
A) The Taipei 101 in Taipei, Taiwan, held the title for about fours years before the Burj Dubai sprouted higher.
B) Because of its enormous size, the builders of Burj Dubai took care to make it resistant to the effects of winds and earthquakes.
C) The Sears Tower in Chicago, Illinois, actually has more stories than the towers, but the addition of the spires in 1998 pushed the towers above the height of the Sears Tower.
D) Although the tower is equipped with the latest technology, it has many traditional Chinese elements. For example, the stacked sections of the building make the tower look like a bamboo shoot.
E) Therefore, it isn’t surprising that the race to have the tallest skyscraper is competitive and spirited. Since adventurous architects planned the first skyscrapers in the late 1800s, builders have been testing the limits of technology and physics with their buildings.