When the Zero Curve Is Upward Sloping, Which Two of the Following

When the zero curve is upward sloping, which two of the following is true? choose two)

A) The one-year zero rate is always greater than the forward rate for the period between 1 year and 1.5 years.
B) The one-year zero rate is always less than the forward rate for the period between 1 year and 1.5 years.
C) The one-year par yield is always greater than the one-year zero rate.
D) The one-year par yield is always less than the one-year zero rate.