3 and 4 are definitely correct answers (untrained and little supplies). They had a purpose though so that is incorrect and the organization of the continental army was quite random at first (local militias) as america tried to stall the British forces until a national organized army rose up.
Answer:
The primary cause for the collapse of the Zhou dynasty was the implementation of the fengjian system, where the royal family would strengthen their authority over the other states by installing relatives as lords in the regions.
Explanation:
Went in to the war and dropped an atomic bomb on Hiroshima
