How does the regular match the content before and after the line break?

A copy of the existing data for:

已建成的电信管道、电信杆路、通信铁塔等电信设施的电信业务经营者应当将空余资源以（　　）等方式向有需求的其他电信业务经营者开放。A.出租 2借款B.出售C.资源互换D.抵押E.质押

The result I need to get from the inside is:

1、A.出租 2借款2、B.出售3、C.资源互换4、D.抵押5、E.质押

The difficulty I encountered was:
“
5, E.
Pledge
”
In this case, this I want to take out to become: "5, E. Pledge"; instead of needing that line change ~
The result is ("A.") To "B." ), ("B.") To "C." ）... And so on the data

============================
According to the first floor, I now put my entire PHP paste out of it.

    //拆分选项列表    public function datalist($data){        $preg = '/[A-E]\.\s?.*[\w\W]?/';        preg_match_all($preg,$data,$results);        foreach($results[0] as $data){            $result[] = trim($data);        }           return $result;    }

Already resolved, thank you all.
Actually very simple, but just can't think out, alas ~:
[A-E]. [^b-e]*

This issue has been closed due to:

Reply content:

A copy of the existing data for:

已建成的电信管道、电信杆路、通信铁塔等电信设施的电信业务经营者应当将空余资源以（　　）等方式向有需求的其他电信业务经营者开放。A.出租 2借款B.出售C.资源互换D.抵押E.质押

The result I need to get from the inside is:

1、A.出租 2借款2、B.出售3、C.资源互换4、D.抵押5、E.质押

The difficulty I encountered was:
“
5, E.
Pledge
”
In this case, this I want to take out to become: "5, E. Pledge"; instead of needing that line change ~
The result is ("A.") To "B." ), ("B.") To "C." ）... And so on the data

============================
According to the first floor, I now put my entire PHP paste out of it.

    //拆分选项列表    public function datalist($data){        $preg = '/[A-E]\.\s?.*[\w\W]?/';        preg_match_all($preg,$data,$results);        foreach($results[0] as $data){            $result[] = trim($data);        }           return $result;    }

Already resolved, thank you all.
Actually very simple, but just can't think out, alas ~:
[A-E]. [^b-e]*

You send the regular you write and see that there's a greedy pattern in the regular.

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