Which individual or group best completes the diagram, which represents the hierarchal structure of the federal bureaucracy? a. the white house chief of staffb. congressc. cabinet secretariesd. independent regulatory agencies?

Cabinet secretairies

This shows the order of hierachal: the president, cabinet secretaries, and then the Executive department civil servants.

do but i don't go there

explanation:

btw this is in middle school stuff lol

the steam engine.

the locomotive.

the telephone.

the telegraph.

the internal combustion engine.

the rifle.

ironclad ships.

electricity/light bulb.