hi,could you help me with a question on a survey? What most attracts you to our free prize-giveaways? Please rank them upon your preference with 1,2,3,4(1 ):
A. Prize's Price
B. Quality
C. Usability
D. Others
About this one "Please rank them upon your preference" is that ok?
Plus:i wanna add a explaination about 1,2,3,4's level:1 represents the choice most attracts you and 2 ,3,4 respectively decrease. How to express it?(另外：我想在后面加个对1234的解释：1代表最吸引你的因素，2，3，4，吸引程度依次降低，应该怎么表达比较好啊？)