It would be a problem because it would cause the land in Mexico City to sink.
According to the World Bank and United Nations poerty threshold/borderline, that is, the minimum level of income deemed adequate in a particular country. In 2005, the World Bank came out with a figure (revised largely due to inflation) of $1.25 a day at 2005 purchasing-power parity (PPP), and in 2015 the World Bank updated the international poverty line to $1.90 a day.
Based on the presentation of the World Bank, (B) Maria earns $1.50 per day and (D) Tim earns $ 1.00 per day will be classified as poor.
They're both located on the continent of Asia, if that helps a bit.
Extremely hot, forms in mantle, known as lava in surface, contains dissolved gasses
