Option A consists of two independent clauses, therefore there's a coordinating conjunction in between them to help the sentence flow.
First become friends with them. Then gain their trust by never lying to them.
Metaphors are used to represent the appearence of the snake. They create the meaning of a rough skinned, black and ribbed snake. The snake is similar to the appearence of a rounded tire. This gives the reader an imagination of what the snake looks like. Similes are also used in this poem to give a clear picture of the position of the snake. It appears the black snake looks very light and limp.
