Which of the following statements about debt contracts is most correct?

Question $22$ options:

$1)$

There are multiple forms of debt contracts.

$2)$

Debt contracts typically contain restrictive covenants.

$3)$

All debt contracts name a trustee.

$4)$

Statements a$.$ and b$.$ are both correct.

$5)$

Statements a$.,$ b$.,$ and c$.$ are all correct.