Read the following article and answer the question. Article: China's admiration of outstanding scholars has turned the well-preserved childhood home of TuYouyou,the Chinese pharmacologist who won this year's Nobel Prize in physiology or Medicine,into a popular tourist destination. Since it was announced on Monday that 84-year-old Tu had become the first Chinese citizen to win this international prize,her former home in the old town of Ningbo,Zhejiang province,has attracted visitors,especially parents and their children----even though it is not open to the public. The house,where Tu lived until she went to university in Beijing,covers an area of 2,200square meters and is priced at 150million yuan($23.6million).It is part of a complex of 37traditional buildings,including several city-and-district-level cultural relic preservation sites,that have been transformed into a high-end art,and commercial zone. "There are continually parents taking their children,from infants in strollers to college students,to take photos in front of Tu's former home.Security guards have been ordered to go on patrol around the clock,"said Mr.Zhao,a salesperson from Ningbo Real Estate Inc Co. Shanghai resident Xu Lingfei,who was on a trip to Ningbo,took her 9-year-old son to walk around the complex on Wednesday."Chinese people believe in exams and awards and have a strong preference for high performers.Taking children to visit the former dwelling places of celebrities is a way to inspire them to study harder,"Xu said. Something similar happened after Mo Yan won the Nobel Prize for literature in 2012.Tourists started visiting Mo's former home in rural Caomi,Shandong Province,in an endless stream starting the day after he won the prize.Some even pulled the radishes planted in front of the house.and carried away some bricks. Question: Tu Youyou's former house is now popular mainly because. . Answer:

(A). Tu won the Nobel Prize.
(B). it has some cultural relics.
(C). it covers a large area.
(D). it is a great art and commercial zone.
Answer:
(A).