In the context of the input sentence, determine the relationship between 'Carlos Lopes' and 'African Union'.
Options: currency, founded by, employer, parent organization

New York, Usa - — The Chairperson of the African Union Commission (AUC) Dr. Nkosazana Dlamini Zuma and the Executive Secretary of the United Nations Economic Commission for Africa (UNECA) Dr. Carlos Lopes will officially welcome the new President of the African Development Bank (AfDB), Dr. Adesina Akinwumi, to Addis Ababa, Ethiopia, headquarters of both the AUC and the UNECA.
employer