In this task you will be given a text passage from a trivia quiz. You should choose the category this question belongs to from these categories: History, Science, Social Science, Fine Arts, Literature. You can only choose one category, so if in doubt, please choose the closest match.

The enzyme LCAT catalyzes the formation of an ester from this compound. Intermediates in the synthesis of this compound include squalene [SKWAY-leen] and mevalonate [muh-VAL-uh-nate], the latter of which is produced by HMG-CoA reductase. Vitamin D is formed from the 7-dehydro form of this compound, which reduces membrane fluidity. This compound, which is transported to the liver by high-density lipoprotein, is linked to heart disease. For 10 points, name this compound whose amount in the blood is lowered by statins such as Crestor and Lipitor.
Science

Japan's Chikyu Hakken is trying to reach this region, and n-waves travel along its upper boundary. Post-perovskite forms in the bottommost part of this region, the D double prime layer. P-waves slow down and S-waves disappear past the bottom of this region, and its top features a P-wave velocity jump from approximately seven to approximately eight kilometers per second. The low velocity zone of the asthenosphere is found in the upper part of this region. It is sandwiched between the Gutenburg discontinuity and the Moho, and this layer's namesake plumes form hotspots. For 10 points, name this layer of the earth between the crust and the core.
Science

One character in this work talks with the chatty Captain Turner, making him late to a meal and frustrating the unseen cook Bridget. The tardy character is the landlord of the also unseen Shaughnessy who has his pigs bathe in the lake of an oil magnate. Multiple characters, including the servant Cathleen, hide their drinking by mixing water with whiskey, and the central male characters are all drunk during the final scene where Baudelaire, Dowson and Swinburne are quoted. This drunkenness follows Dr. Hardy diagnosing Edmund with consumption while the other major conflict centers on Mary's abuse of morphine. FTP, identify this play centering on the Tyrone family, a mostly autobiographical work by Eugene O'Neill.  

Literature

