The Blue Card Scheme Is a European Union Policy That

The Blue Card scheme is a European Union policy that

A) specifies water purity standards.
B) forces Germany to grant citizenship to the second-and third-generation guest workers.
C) makes "guest worker" programs illegal.
D) permits highly skilled foreigners living outside the European Union to live and work in its member states, including Germany.
E) permits member states, like Germany, to adopt more restrictive rules concerning political asylum.