The Upper House of Germany's Parliament, the Bundesrat, Has Delegate

The upper house of Germany's parliament, the Bundesrat, has delegate members selected by their state (or Länder) governments, not elected members.How, in this manner, is the Bundesrat similar to the U.S.Senate, as originally envisioned by the Constitution's framers?

A) It is much like the original U.S.Senate; prior to direct election under the Seventeenth Amendment, senators were appointed by state legislatures.
B) It is not similar, since U.S.senators have always been directly elected by state voters.
C) It is only somewhat similar, since states held elections for senators, with formal state legislative certification of selection winners serving an Electoral College-like buffer function, in allowing senators to withstand democratic pressures.
D) It is much like the original U.S.Senate; prior to direct election under the Seventeenth Amendment, senators were originally appointed by state governors, in consultation with legislators.