The correct answer is (a) Ibrahim Mohammed Solih.
Ibrahim Mohamed Solih was elected as the 10th President of the Maldives on 23 September 2018. He defeated the incumbent President Abdulla Yameen Abdul Gayoom by a narrow margin of 39,000 votes. Solih is a member of the Maldivian Democratic Party (MDP) and has served as the Speaker of the Parliament of the Maldives from 2009 to 2012.
Mohammad Nasheed was the 3rd President of the Maldives from 2008 to 2012. He was ousted in a coup in 2012 and has been in exile since then. Nasheed is the leader of the MDP and is the main opposition leader in the Maldives.
Mohammed Muizzu is a former Minister of Defence and National Security of the Maldives. He is a member of the Progressive Party of Maldives (PPM) and is a close ally of former President Abdulla Yameen Abdul Gayoom.
Abdullah Shahid is the current Foreign Minister of the Maldives. He is a member of the MDP and is a close ally of President Ibrahim Mohamed Solih.