Which of the following is most clearly one of Lincoln's purposes for writing this letter to Joshua Speed? A. to help his friend appreciate that Lincoln tolerates slavery in the South even though he hates it
B. to start an argument with his friend over his friend’s support for the expansion of slavery
C. to explain why he finds it necessary to speak out against slavery
D. to persuade his friend to join him in opposing slavery

Arrange the sentences below to form a logical paragraph. an experienced rock climber knows that it takes a combination of knowledge and preparation to perform a successful climb. a successful climb begins with a proper foothold, carefully placing each foot on a ledge or crack then reaching for a solid hold, and finally pushing off. in addition to a proper foothold, a climber must be careful to check the integrity of the rock before stepping because it has to be solid clear through. a veteran climber judges the integrity of the rock and chooses not to climb on conglomerates, packed clay with lots of little rocks. but, such knowledge of rock is not the only preparation a skilled climber needs; equally important is the correct equipment. with these tools, knowledge of rock composition and equipment safety, a climber may experience many safe and enjoyable climbs.