Why do the colours blue and pink represent genders?

The colours blue and pink represents genders because blue is normally boys favorite colour and pink is normally girls favorite colour.

Explanation:

in "letter from a birmingham jail," king argues that there are four basic steps in any nonviolent campaign: "[c]ollection of the facts to determine whether injustices exist; negotiation; self purification; and direct action." finally, direct action is taken and acts such as boycotts and sit-ins are staged.