Which is the best sentence?
O Michelle's supervisor wants to send an announcement to the mailing list, and she is writing it.
O Michelle's supervisor wants to send an announcement, which she will write, to her mailing list.
O An announcement written by Michelle is wanted by her supervisor to send to
the mailing list.
O Michelle's supervisor wants to send an announcement written by
Michelle to her mailing list.
O Michelle's supervisor wants to send an announcement to the mailing list and Michelle is writing it.