Answer:
A
Explanation:
Because it makes more sense than the others
The Articles created a loose confederation of sovereign states and a weak central government, leaving most of the power with the state governments. The need for a stronger Federal government soon became apparent and eventually led to the Constitutional Convention in 1787.
The combined Union Pacific-Central Pacific line became known as the First Transcontinental Railroad and later the Overland Route. The line was constructed primarily by Irish labor who had learned their craft during the recent Civil War.
Collective learning is the ability to learn and transfer knowledge to others, but it is also the ability to use other people to help learn certain material.
