Question: Black Adam, the fictional DC Comics supervillain is an adversary of which superhero?
Context: Lord Havok is a fictional character, a DC Comics supervillain, part of the supervillain team called the Extremists.  He is a genius equipped with a powered armor.  Lord Havok first appeared in "Justice League Europe" #15 (June 1990).  He is a nod to the Marvel comics supervillain, Doctor Doom. Phobia is a fictional DC Comics supervillain of the New Teen Titans. Black Adam is a fictional DC Comics supervillain and occasional antihero; an adversary of the superhero Captain Marvel, also known as Shazam.  Black Adam was created by Otto Binder and C. C. Beck in 1945 as a one-shot villain for the first issue of Fawcett Comics' "The Marvel Family" comic book; however, Black Adam was revived as a recurring character after DC Comics first licensed and then acquired the Fawcett characters and began publishing Captain Marvel/Marvel Family stories under the title "Shazam!"  in the 1970s. 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. Java is a fictional DC Comics supervillain. Starfinger is a fictional DC Comics supervillain.  He first appeared in "Adventure Comics" #335 (August 1965) created by Edmond Hamilton and John Forte and was an enemy of the Legion of Super-Heroes. Black Mass is a fictional DC Comics supervillain. Black Hand (real name William Derek Hand) is a fictional DC Comics supervillain and a recurring foe to Green Lantern. Gorgon is a fictional character, a DC Comics supervillain, part of the evil gang called Extremists.  He is based on the Marvel Comics supervillain Doctor Octopus, and like him has several super-strong tentacles, though they are organic rather than mechanical. Isis is a DC Comics superhero, as well as a separate Egyptian goddess also living in the DC Universe.  The recent superhero character is modeled closely after the main character of "The Secrets of Isis", a live-action American Saturday morning television program that served as the second half of "The Shazam! /Isis Hour".  The television character appeared in several late 1970s DC Comics publications.  The more recent superhero character was introduced into the DC Universe in 2006 as a female counterpart to the character Black Adam, a part of the "Shazam!"  family of characters.  The Egyptian goddess character has been depicted within the "Wonder Woman" comic book.
Answer: Captain Marvel