You will be given a definition of a task first, then some input of the task.
In this task, you're given an article, a question which often contains a blank, four options (associated with "A", "B", "C", "D") and the answer to that question. Your task is to classify whether the given answer is correct or not by providing "Yes" or "No", based on the article.

Article: In the late 1960's, many people in North America turned their attention to environmental problems, and new steel-and-glass skyscrapers were widely criticized. Ecologists pointed out that a forest of tall buildings in a city often overburdens public transportation and parking lots. Skyscrapers are also consumers and wasters of electric power. In one recent year, the addition of 17 million square feet of skyscrapers office space in New York City raised the peak daily demand for electricity by 120,000 kilowatts--enough to supply the entire city of Albany, prefix = st1 /New York, for a day. Glass-walled skyscrapers can be especially wasteful. The heat loss ( or gain) through a wall of half-inch plate glass is more than ten times that through a typical brick wall filled with insulation board. To lessen the strain on heating and air-conditioning equipment, builders of skyscrapers have begun to use double-glazed panels of glass, and reflective glasses coated with silver or gold mirror films that reduce glare as well as heat gain. However, mirror-walled skyscrapers raise the temperature of the surrounding air and affect neighboring buildings. Skyscrapers put a strain on a city's sanitation facilities ,too. If fully occupied, the two World Trade Center towers in New York City would alone produce 2.25 million gallons of wastes each year-as much a city the size of Stanford,Connecticut, which has a population of more than 109,000. Skyscrapers also affect television reception, block bird flyways and air traffic, In Boston in the late 1960's, some people even feared that shadows from skyscrapers would kill the grass on Boston Common. Still ,people continue to build skyscrapers for all the reasons that they have always built them-personal pride and the desire of owners to have the largest possible amount of space to rent.
Question: The main purpose of the passage is to _
Options: (A) compare skyscrapers with other modern structures (B) describe some architectural designs of skyscrapers (C) describe skyscrapers and their effect on the environment (D) encourage using bricks in the construction of skyscrapers
Asnwer: A
Output:
No