What was the national government's biggest concern if facing a war, under the Articles of Confederation?

The National Government's biggest concern was that the Articles of the Confederation provided for a system of power-sharing between the Federal Government and the States, but it severely limited and compromised the powers of the Central Government in comparison to that of the State Governments.

Explanation:

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i believe the answer is: b. mr. head had a long, tube-like face with a rounded open jaw and a short depressed nose.

this is because in the un-revised sentence it said that mr. heads face was long and tube-like, and he had a rounded open jaw. this is not a very grammatically correct because of how it seems to drag on with the and, replaced with, with, makes it sound more fluent in the description.