What key military action did the Continental Army take overnight that led to the British withdrawal from Boston?

They launched a direct naval assault on the British fleet in the harbor.

They fortified a high point overlooking the city with cannons.

They negotiated a secret treaty with French allies for reinforcements.

They cut off all British supply lines by land, starving them out over several months.

Why did placing cannons on Dorchester Heights give the Continental Army a decisive advantage during the Siege of Boston?

It allowed them to signal other colonial militias to join the attack from all sides of the city.

The position was primarily symbolic and served to intimidate the British into surrendering without a fight.

The high ground gave them a commanding position to fire upon the British ships and soldiers below.

It demonstrated their superior technological capabilities, which demoralized the British forces.

They launched a full-scale counter-attack to seize the heights from the colonists.

They requested a temporary ceasefire to negotiate new terms of occupation with Washington.

They were forced to withdraw from Boston to avoid being bombarded by the new artillery.

They moved their ships further into the harbor, just out of the cannons' effective range.