A,B是集合,P(A),P(B)为其幂集,且<imgwidth="57"height="19"src="http://wljy.whut.edu.cn//uploadfiles/word/lsss002.files/image023.png">,则P(A)∩P(B)为( )
①
<imgwidth="18"height="15"src="../uploadfiles/word/lsss002.files/image024.png">
②
<imgwidth="33"height="20"src="../uploadfiles/word/lsss002.files/image025.png">
③
<imgwidth="48"height="22"src="../uploadfiles/word/lsss002.files/image026.png">
④
<imgwidth="73"height="17"src="../uploadfiles/word/lsss002.files/image027.png">