Galloway's purpose in writing the letter was to point out his solution to the problem of colonists resisting the imposition of taxes by the British government. It was the first impulse of what would later be known as the Galloway's Plan of Union, which consisted in creating a parliament of American colonists who would oversee the decisions the British parliament had for the new continent.
In the letter, Galloway recognized the burden of sustaining the colonies as being a reasonable cause for the United Kingdom to tax colonists, but recognized the inability of the later to pay due to the trading restrictions set by the English.
He suggested that if colonists considered the impositions too heavy, they should refer to more rational methods than rioting to let the British understand that they couldn't pay the taxes, for example by sending American representatives to the British parliament.
The Mothers of Plaza de Mayo is an Argentine association formed during the dictatorship of Jorge Rafael Videla in order to recover the disappeared detainees alive, and then establish who was responsible for the crimes against humanity and promote their prosecution.
When they started the marches around the May Pyramid, symbol of freedom. To recognize themselves, they began to use a white headscarf <u><em>originally made with cloth from the diapers that were used for babies, thus representing the children.</em></u> That handkerchief became his symbol. The Mothers tried to make known their dramas and thus participated in numerous and popular religious marches in which it was convenient that they could recognize themselves.
Confederation was chosen by congress because they the felt the need for a strong union and a government powerful enough to defeat Great Britain.
The correct answer to your first question is C. The correct answer to your second question is A.