Question: Daniel Kaluuya (born 8 May 1989) is an English actor and writer, she played Bing in the "Black Mirror" episode "Fifteen Million Merits", is what number episode, of the first season of British science fiction anthology series "Black Mirror"?
Context: "The National Anthem" is the first episode of the British science fiction anthology series "Black Mirror".  The episode was written by series creator and showrunner Charlie Brooker and directed by Otto Bathurst; it first aired on Channel 4, on 4 December 2011. "Nosedive" is the first episode of the third series of British science fiction anthology series "Black Mirror".  Michael Schur and Rashida Jones wrote the teleplay for the episode, based on a story by series creator and showrunner Charlie Brooker, while Joe Wright acted as director.  Max Richter composed the soundtrack.  It premiered on Netflix on 21 October 2016, together with the rest of the third series. "Fifteen Million Merits" is the second episode of the first series of British science fiction anthology series "Black Mirror".  It was written by series creator and showrunner Charlie Brooker and his wife Kanak Huq and directed by Euros Lyn, and first aired on Channel 4 on 11 December 2011. "San Junipero" is the fourth episode of the third series of British science fiction anthology series "Black Mirror".  Written by series creator and showrunner Charlie Brooker and directed by Owen Harris, it premiered on Netflix on 21 October 2016, together with the rest of series three.  The episode has a substantially happier tone than other "Black Mirror" episodes, and is one of the show's most successful episodes. "White Bear" is the second episode of the second series of the British science fiction anthology series "Black Mirror".  It was written by the series creator and showrunner Charlie Brooker and directed by Carl Tibbetts.  The episode follows Victoria (Lenora Crichlow), a woman who does not remember who she is and wakes up in a place where almost everybody is controlled by a television signal.  Along with some of the few other unaffected people (Michael Smiley and Tuppence Middleton), she must stop the "White Bear" transmitter while surviving merciless pursuers. "Hated in the Nation" is the sixth and final episode of the third series of British science fiction anthology series "Black Mirror".  Written by series creator and showrunner Charlie Brooker and directed by James Hawes, it premiered on Netflix on 21 October 2016, along with the rest of series three.  It is the longest episode in the series at 89 minutes. "The Entire History of You" is the third and final episode of the first series of British science fiction anthology series "Black Mirror".  It was written by the creator of "Peep Show" and "Fresh Meat", Jesse Armstrong, making it the only episode of the series not written or co-written by creator and showrunner Charlie Brooker.  It was directed by Brian Welsh, and first aired on Channel 4 on 18 December 2011. "White Christmas" is a 2014 Christmas special episode of the British science fiction anthology series "Black Mirror".  It was written by series creator and showrunner Charlie Brooker and directed by Carl Tibbetts, and first aired on Channel 4 on 16 December 2014.  The only television special of the series, it is also the last episode to be aired on Channel 4, as the series would move to Netflix for its third series. Daniel Kaluuya (born 8 May 1989) is an English actor and writer.  Kaluuya is best known for playing Chris Washington in the 2017 horror film "Get Out", Posh Kenneth in the E4 teen-drama "Skins", and Bing in the "Black Mirror" episode "Fifteen Million Merits". The Waldo Moment is the third episode of the second series of British science fiction anthology series "Black Mirror".  It was written by series creator and showrunner Charlie Brooker and directed by Bryn Higgins, and first aired on Channel 4 on 25 February 2013.  The episode originated in an idea for "Nathan Barley", an earlier TV show by Brooker and Chris Morris.
Answer: second