题目内容：
根据以下内容，回答题。PLACE THIS COUPON IN THE BOX AND YOU CAN WIN!
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With this Futora Blender and Juicer, you'll be on your way to a healthier body and a clearer mind but without the strain of diets and strict exercise regimes. Try some fresh fruit and vegetable juice first in the morning, and you'll chase away those Monday morning blues! The Futora Blender and Juicer is easy to use. It automatically peels apples, pears, kiwi fruit, carrots, and many other fruits and vegetables. You only need to rinse them. It's a breeze to clean, and the waste makes excellent compost for your garden. The Futora Blender and Juicer, valued at only $99, comes with a dietary guide and recipe book for 50 delicious and healthful fruit and vegetable drinks.
How can one become eligible to win the contest? A．By sending the coupon to the company
B．By picking up a blender
C．BY looking inside the box
D．By filling out a contest entry form
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