There are three candidates running for president of the senior class: Peter, Carmen, and...

There are three candidates running for president of the senior class: Peter, Carmen, and Shawna. Voters mark their ballots to indicate their first, second, and third choices (only ballots with all three choices marked are valid). The results are summarized as follows:

a. Who is elected president using the Borda count method?

b. Who is elected president using the plurality method?