Most people frown about #4. It is a comma splice which means that 2 main clauses hung together by a comma. The better way to do it is with a ; since the two statements are unrelated. In this case it is a very fine point of grammar which is more annoying than wrong.
#1 is wrong because there is no main clause. The bell is the beginning of the main clause.
#2 is passive. It's not wrong, but the writing style could be better.
#3 <<<< answer The and is the proper way to connect 2 predicates.
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