Of the following features, only $\_\_\_\_\_$ apply to T$-$bills?

$$I$.$ original maturities of $4,13,$ or $26$ weeks$$II$.$ minimum face value of $$10,000$III$.$ sold at a discount$$IV$.$ semiannual interest payments

Question $22$ options:

A$)$ IV only

B$)$ I and III only

C$)$ I and IV only

D$)$ II and III only