Besides having the power to evaluate laws, the Judicial Branch also has the power of judicial review, that is to say, the power to determine whether policies enacted by the Congress and acts of the executive are constitutional or not. This way, the Judicial branch ensures that the other two branches don't abuse from their power.
The other option is incorrect because to debate and to finalize the details of policy is part of the Legislative branch function.
The judicial branch enforces the law; making sure it is carried out and people oblige to it. They also determine if the policy is constitutional or unconstitutional.
The British troops marched to lexington and concord to get battle supplies and that is where the first event of the war happened. A famous gun shot was shot out, but nobody knows who did it. The events mark the start of the revolution becuase it was the first battle of the revolution.
