Answer:
I believe that brain drain has indeed undermined the development of most African countries. When highly skilled individuals leave their home countries to seek better opportunities abroad, it can result in a loss of valuable human capital. This can lead to a lack of expertise and innovation within the country, hindering its progress and development. Additionally, brain drain can exacerbate existing inequalities and contribute to a "brain drain cycle" where the best and brightest continue to leave, further impeding the country's growth.