A photographer is hanging six portraits on the wall in a straight line. The portraits are of six family members: Lily, Mildred, Nancy, Owen, Peter and Quentin. The order in which the portraits are hung must conform to the following restrictions:
Mildred's portrait must be either first or last
There must be exactly one portrait between Nancy and Quentin
Nancy's portrait must come after Lily's but before Quentin's
Which of the following is an acceptable order in which the portraits could be hung?