Answer:
the author purpose is to show the readers how Mr. rickeys family was worried about him the rest is up to you sorry
Explanation:
In the first paragraph, MLK addresses the clergyman's words concerning the timing of the movement being "unwise and untimely", stating that he didn't have to take the time to answer the clergyman's questions, but because he respects them, he will answer their letter.
King's goal in issuing his "letter from a Birmingham jail" was to address criticisms directed against him by individuals who unarguably should have known better. The teachings of Jesus, he repeated, provided for the nonviolent activities that were solely intended to correct injustices.
It is necessary because if you don't have a confirmed opinion with textual evidence to back it up you wont have a good argument.
The group had congregated a conference meeting on Sunday and ended up communicating combatively instead of the peacemaking they'd intended.
^ Sentence is a little...awkward, but hopefully will make do.
I really hope this was helpful! c: