It is unfortunate that demonstrations are taking place in Birmingham, but it is even more unfortunate that the city's white power structure left the Negro community with no alternative.

How does King support this claim?

in our power to make a world happy - to teach mankind the art of being so - to a character hitherto unknown - and to have, as it were, a new creation intrusted to our hands, are honors that command reflection, and can neither be too highly estimated,

the correct answer is: a) every day, the children play and swim in the lake.

explanation: the topic is about the children playing and swimming everyday in the lake, the rest of the sentence is only a positive description of the outcome of such events.