Ideally, Batch Cooking of Frozen Carrots in the Steamer to Serve

Ideally, batch cooking of frozen carrots in the steamer to serve 200 would involve

A) cooking all of the carrots at one time and holding in batches of 25 for service.
B) determining how many carrots would be served in an hour and cooking that batch all at one time.
C) cooking single pans of carrots just in time for service.
D) determining how many carrots could be cooked in one batch in the steamer and cooking all carrots in that size batch.