Why did Boston become the focal point of colonial protest against Brit

Why did Boston become the focal point of colonial protest against British policies?

What will be an ideal response?

ANSWER
Consider: Boston was a major port city whose citizens’ livelihood was affected by the Sugar Act, Townshend Duties, and Tea Act. Boston had effective leadership of the popular faction from Samuel Adams, James Otis, and others (partly motivated by personal vendettas). Well organized workers’ associations could be quickly mobilized for crowd action.