Using the Instant-runoff method, it can be inferred that the winner is the tacos because after the first vote, they get 3 more votes that allow them to have more than half of the possible votes (option B).
What is the instant-runoff method?
Instant-runnof is a voting method whereby a single winner is selected from a wide variety of options. This method is characterized by allowing voters to choose different options on a scale of first option, second option, third option.
According to the above, in the first vote the sandwiches are eliminated because they had the lowest vote (3 votes). Then, a new vote must be carried out with the products that were left that were Pizza and Tacos.
On the second ballot, tacos get 3 more votes because voters who voted for Sandwich on the first ballot had Tacos as their second choice. So the bottom line is Pizza with 9 votes and Tacos with 11 votes.
In short, the Tacos win by having more than half of the possible votes 11/20.
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