Answer:
C, the board of directors of IFS
Step-by-step explanation:
The board of the IFS is ultimately responsible for the corporate climate that resulted in the use of substandard ingredients in the meals meant for the troops.
This is because the directors are the ones at the helm of affairs and they decide what happens in the IFS. This means that at least one of the directors is aware of the use of substandard ingredients . It can be said that if one knows, all other know. This phrase convieniently indicts the directors.
Cheers.