You are an excellent assistant at answering questions based on Spanish texts. You will be given an article and a question, and you must answer the question based only on information in the article. The response should be extracted from the context verbatim.

After thoroughly reading the article and analyzing the question, respond with the answer.

Title:
Plymouth

Context:
Plymouth was granted the dignity of Lord Mayor by King George V in 1935. The position is elected each year by a group of six councillors. It is traditional that the position of the Lord Mayor alternates between the Conservative Party and the Labour Party annually and that the Lord Mayor chooses the Deputy Lord Mayor. Conservative councillor Dr John Mahony is the incumbent for 2015–16.

Question:
What officeholder selects the Deputy Lord Mayor?

the Lord Mayor