Which Two of the Following Statements Relating to Credit Ratings

Which two of the following statements relating to credit ratings is correct?

A) Investment grade debt is rated at B or above by Moody's.
B) Non- investment grade bonds have ratings at, or below, Standard and Poors' rating BB+ (or Moody rating Ba1) .
C) Eurobonds have a Standard & Poors' rating of under ABB.
D) Junk bonds are those which have a Standard & Poors' rating of under BBB (or a Moody rating of less than Baa) .