Labor power is a special commodity right or wrong?

Right.

Explanation:

The labor market is as much a commodity as the materials are to be processed.

Labor power is a unique commodity in that it is a characteristic of living people who own it in their own bodies. They cannot permanently sell it to someone else because they own it within themselves; otherwise, they would be a slave, and a slave does not own himself.

answer; buying the bill at a discount from the face value to be received at maturity;