Please help "The autumnal equinox (noun) is an astronomical event that occurs when the hours of night and day are equal in length, happening around September 22 each year."

What type of definition is provided in the sentence?

A: formal definition
B: extended definition
C: informal definition
D: dictionary definition​

What aspect of the room seems to most bother the narrator of the yellow wallpaper

Read the following scene from trifles. mrs. peters. she was piecing a quilt. (she brings the large sewing basket, and they look at the bright pieces.) mrs. hale. it’s log cabin pattern. pretty, isn’t it? i wonder if she was goin’ to quilt or just knot it? (footsteps have been heard coming down the stairs. the sheriff enters, followed by hale and the county attorney.) sheriff. they wonder if she was going to quilt it or just knot it. (the men laugh, the women look abashed.) county attorney (rubbing his hands over the stove). frank’s fire didn’t do much up there, did it? well, let’s go out to the barn and get that cleared up. (the men go outside.) how would a film version most likely emphasize the men’s emotions during this scene? by emphasizing the variety of props used by showing the men’s facial expressions by highlighting the characters’ costumes by focusing on the actions of the women

Which excerpt from the war of the worldseffectively reveals how the author relates the climax of the narrative through the narrator's thoughts? the war of the worldsall this had happened with such swiftness that i had stood motionless, dumbfounded and dazzled by the flashes of light. had that death swept through a full circle, it must inevitably have slain me in my surprise. but it passed and spared me, and left the night about me suddenly dark and unfamiliar. and then, with a renewed horror, i saw a round, black object bobbing up and down on the edge of the pit. it was the head of the shopman who had fallen in, but showing as a little black object against the hot western sun. at that time it was quite clear in my own mind that the thing had come from the planet mars, but i judged it improbable that it contained any living creature. i thought the unscrewing might be automatic. my mind ran fancifully on the possibilities of its containing manuscript, on the difficulties in translation that might arise, whether we should find coins and models in it, and so forth. yet it was a little too large for assurance on this idea. i felt an impatience to see it opened.