Once a decision is made on a case, that case can be used in the future to help
decide a similar case.
Law
This is also known as a

What type of law is it

Precedent -

Stare decisis

Stare decisis is a legal doctrine that obligates courts to follow historical cases when making a ruling on a similar case. Stare decisis ensures that cases with similar scenarios and facts are approached in the same way.

Explanation:

the correct answer is b) the american colonies were not supporting each other.

at the time abigail wrote her second letter to john adams on november 27, 1775 she begins the letter with a series of rhetorical questions such as: if a form of government is to be established here what one will be assumed? , will it be left to the assemblies to chose one? with this questions, she is asking her husband what new form of government will be established and she is concerned that the delegates may not be able to come to consensus.

also, abigail believes that the regulations of government have been "so long slackened" that people could ignore a new government; she recognizes difficulty to establishing a new state.