C because a compound sentence is when you have once sentence, but it can become two. it is separated by commas (,)
The strange boy whistled and put his hand into his pocket, as far as the big coat sleeves would let them go.
Semicolon is not correct before the conjunction "and".
Answer:
They focus on characters, customs and language common to a particular region.
Since they are white, they may represent purity or innocence!