Answer:
C. Roll a dice 1 time and flip a coin 2 times. Assign a sequence (for example 4-H-T) to each candidate
Step-by-step explanation:
All of these methods can be used. In methods A, B and D, there are more possible outcomes than candidates, so the process may need to be repeated—possibly several times—in order to choose a candidate.
For methods A and D, the dice need to be separately identifiable.
For option D, each candidate can have 3 different sequences assigned, as there are 72 possible outcomes (3 times 24). That way, one execution of the method will result in a chosen candidate.
Method C is the simplest, because there are exactly 24 outcomes
