Question: The publisher of the comic that features Silent Knight is a publishing unit of what?

Context paragraphs:
Silent Knight: The Silent Knight (Brian Kent) is a fictional medieval hero appearing in comic books published by DC Comics.  The character first appeared in "The Brave and the Bold" #1 (August 1955), and was created by Robert Kanigher and Irv Novick.  He was one of three historical fiction characters to premiere in the first issue (the other two being Golden Gladiator and the Viking Prince).

Silent Knight (disambiguation): The Silent Knight is a DC Comics character.

Thomas Nelson (publisher): Thomas Nelson is a publishing firm that began in West Bow, Edinburgh, Scotland in 1798 as the namesake of its founder.  (The founder's name was actually Neilson, but he changed it to Nelson owing to many errors made by his customers.)  It is a subsidiary of HarperCollins, the publishing unit of News Corp.

Amazon Publishing: Amazon Publishing is Amazon.com's book publishing unit launched in 2009.  It is composed of a number of imprints including AmazonEncore, AmazonCrossing, Montlake Romance, Thomas & Mercer, and 47North.

Kindle Direct Publishing: Kindle Direct Publishing is Amazon.com's e-book publishing unit launched in 2007, concurrently with the first Amazon Kindle device.  Amazon launched Kindle Direct Publishing (KDP) to be used by authors and publishers to independently publish their books directly to Kindle and Kindle Apps worldwide.  Authors can upload documents in several formats for delivery via Whispernet and charge between $0.99 and $200.00 for their works.  These documents may be written in 34 languages.

Viking Prince: The Viking Prince is a fictional Viking hero appearing in comic books published by DC Comics.  The character first appeared in "The Brave and the Bold" #1 (August 1955), and was created by Robert Kanigher and drawn by Joe Kubert.  He was one of three historical fiction characters to premiere in the first issue (the other two being the Silent Knight and the Golden Gladiator).

DC Comics: DC Comics, Inc. is an American comic book publisher.  It is the publishing unit of DC Entertainment, a subsidiary of Warner Bros.  Entertainment, Inc., a division of Time Warner.  DC Comics is one of the largest and oldest American comic book companies, and produces material featuring numerous well-known heroic characters including Superman, Batman, Wonder Woman, Green Lantern, the Flash, Aquaman, Hawkman, and Green Arrow.  Most of their material takes place in the fictional DC Universe, which also features teams such as the Justice League, the Justice Society of America, the Suicide Squad, and the Teen Titans, and well-known villains such as the Joker, Lex Luthor, The Cheetah, Harley Quinn, Darkseid, Catwoman, Ra's al Ghul, Deathstroke, Reverse-Flash, Sinestro, Black Adam, and Brainiac.  The company has also published non-DC Universe-related material, including "Watchmen", "V for Vendetta", and many titles under their alternative imprint Vertigo.

2057 (EP): 2057 is the first of the two debut solo EPs by American rapper and record producer J57.  Released simultanoulsy along with "The Ports", "2057" features vocal appearances from notable artistes including DJ Brace, Sene, Homeboy Sandman, Rob Kelly, Soul Khan, Koncept, Silent Knight and Theory Hazit.

Silent Knight (album): Silent Knight is the third studio album by the Canadian progressive rock band Saga and was originally released in August 1980.

Prince &amp; Princess: "Prince & Princess" is the third single from Versailles, released on December 10, 2008.  The single was released in six different versions; five with a different member on the cover and one regular edition with the whole group on the cover plus the bonus track "Silent Knight".  This version of "Prince" is slightly different from the one that was first distributed free of charge on the band's website and then added to the October 22 reissue of their first album, "Noble".  "Princess" is featured on the band's second album "Jubilee", albeit as the re-recording "Princess -Revival of Church-".

Supporting paragraphs: Silent Knight DC Comics
Answer: DC Entertainment