Interactive Quiz on Ricardian Equivalence

Interactive Quiz
Q: Ricardian Equivalence refers to:

The similarity of hypotheses proposed by David Ricardo and John Maynard Keynes.
The similarity of hypotheses proposed by David Ricardo and Jean Baptiste Say.
The idea that in a frictionless world, real variables such as real interest rates and real income are not affected by the government's method of finance, be it by taxation or borrowing.
The idea that in a frictionless world nominal variables such as nominal interest rates and income are not affected by the government's method of finance, be it by taxation or borrowing.

For what Ricardo actually said on this subject, see (among other statements throughout his work), Chapter 29, paragraph 3 of David Ricardo, On the Principles of Political Economy and Taxation.