One of the weaknesses of the Articles of Confederation was a. It gave too much power to the national government.
b. It did not have an executive branch
c. It divides power among the three branches of government.
d. It formed a tight unity between the states.

A

Explanation:

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seeing as no choices were provided, i'll do my best to answer it from knowledge.

job specialization promotes work ethic to the person doing the job. he/she may be strong in the arms and able to lift things, specializing him/her in a job where you lift and carry.