I'm taking a test and have to guess the right answer to the question after the article. Article: Welcome to the zoo Opening time: Price: From Monday to Friday Adults:Y=20 8:30 a.m.--5:30 p.m. Childen:Y=10 On Saturday & Sunday 8:30 a.m.--6:00 p.m. Location:Xiaohe Street, ChangchunDistrict ,Binhai City . Question: The zoo opens _ a week. Options: A: two days B: five days C: six days D: seven days
A:
D