A Multiperiod Binomial Interest Rate Derivative Pricing Model

A multiperiod binomial interest rate derivative pricing model:

A) has a vector of zero-coupon bonds evolving over time which are used for pricing derivatives
B) requires only a spot rate evolving over time for pricing derivatives
C) requires a money market account to earn a constant rate of interest across time
D) requires a stock whose value goes up in the "up state" and down in the "down state"
E) None of these answers are correct.