Read this sentence. It contains a comma splice.
I can't believe they are not twins, they look so much alike!
Which of the following makes this sentence correct?
A:I can't believe they are not twins: they look so much alike!
B:I can't believe they are not twins because they look so much alike!
C:I can't believe they are not twins; and they look so much alike!
D:I can't believe they are not twins they look so much alike!