We are planning a number of items of business on the occasion of the Teacher's Day. They are: flowers, shower gel, .. the first place we choose will be university Dong Nai, before conducting business, we went to the actual survey of students in the school. We live interview with about 50 students out of 200 students that we met. Then we make all kinds of products as above and ask questions that "of all kinds of products on any type you like best buy, and put test questionnaire to their favorite level of choice. It is composed including answers like A: very interested; B: temporary; C: do not. Finally, we have obtained the following results:
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