b.While slowly the house of day is closing its eastern shutters
Explanation:
A metaphore is giving something the attributes of something else that do not belong to them or normally wouldn´t belong to that thing, in this case specifically the day time is compared to a house, that is closing its shutters meaning that the day is coming to an end, and the sun is no longer iluminating the world. This is a metaphor to let you know that the sun is setting.
The phrase or sentence in the poem "At the Window", by D.H. Lawrence that uses a metaphor is option <em>b. while slowly the house of the day is closing its eastern shutters</em>. This poem is written from the point of view of an onlooker at a window. It is a description of the outdoors, which are described with human traits or personification. A metaphor is a literary device that makes a hidden comparison between two unrelated things. In this case "the house of day...shutters" is compared to the ending of a day.