Question: 3. (2 pts) A professor teaching a Discrete Math course- gives a multiple choice quiz that has four questions, each with four possible responses: a,

3. (2 pts) A professor teaching a Discrete Math course- gives a multiple choice quiz that has four questions, each with four possible responses: a, b, c, d. 1What is the minimum number of students that must he in the professor's class in order to guarantee that at least two answer sheets must be identical? (Assume that no answers are left blank.)

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