Question: Streets is watching features music from the album, "Reasonable Doubt", which is written by which famous rapper?  

Context paragraphs:
Reasonable Doubt (album): Reasonable Doubt is the debut studio album by American rapper Jay-Z.  It was released on June 25, 1996, by Roc-A-Fella Records and Priority Records.  The album features production provided by DJ Premier, Ski,Knobody and Clark Kent, and also it includes guest appearances from Memphis Bleek, Mary J. Blige and The Notorious B.I.G., among others.  The album features Mafioso rap themes and gritty lyrics about the "hustler" lifestyle and material obsessions.

Streets Is Watching (film): Streets Is Watching is a musical film in which Jay-Z compiles many of his unreleased music videos into a continuous film.  The film takes place in Jay-Z's old neighborhood in Brooklyn, New York.  The film uses music from Jay-Z's albums "Reasonable Doubt" and "In My Lifetime, Vol.  1".  The film is noteworthy because it contains Jay's first two videos, "In My Lifetime" and "I Can't Get Wit That", both released without a major label contract.

Jaz-O: Jonathan Burks (born October 4, 1964), better known by his stage name Jaz-O, is an American rapper and record producer active in the late 1980s through the 1990s, best known for being the mentor of Jay-Z.  Jaz is also known as the Originator and had a song called "The Originators" that featured a young Jay-Z in 1990.  As The Jaz, he had success with his 1989 single "Hawaiian Sophie" from his debut album "Word to the Jaz".  He has been featured on some of Jay-Z's songs, such as "Bring it On" (from "Reasonable Doubt"), "Ain't No Nigga", and the single "Nigga What, Nigga Who (Originator 99)" from "", where he was credited as Big Jaz.  He also produced the single "Ain't No Nigga" from "Reasonable Doubt" and the song "Rap Game/Crack Game" from "In My Lifetime, Vol.  1".  The album "Kingz Kounty (2002) - with The Immobilarie Present" marked the last time Jay-Z and mentor Jaz-O would ever collaborate.

Feelin' It (Jay-Z song): "Feelin' It" is the fourth and final single from rapper Jay-Z's debut album "Reasonable Doubt".  The song features a chorus sung by Mecca and a beat produced by Ski.  The song's beat contains a sample from "Pastures" by jazz musician Ahmad Jamal.  The track was originally meant to be a Camp Lo song, but producer Ski gave it to Jay at the last minute.  He describes the situation in an "XXL Magazine" article:

Jay-Z: Shawn Corey Carter (born December 4, 1969), known professionally as JAY-Z, is an American rapper and businessman.  He is one of the best-selling musicians of all time, having sold more than 100 million records, while receiving 21 Grammy Awards for his music.  MTV ranked him the "Greatest MC of all time" in 2006. " Rolling Stone" ranked three of his albums—"Reasonable Doubt" (1996), "The Blueprint" (2001), and "The Black Album" (2003)—among The 500 Greatest Albums of All Time.  In 2017, "Forbes" estimated his net worth at $810 million, making him the second-richest hip hop artist in the U.S.

Hurry Up This Way Again: "Hurry Up This Way Again" is a song originally recorded by The Stylistics.  It reached #18 in the U.S. R&B chart.  The track was written by Cynthia Biggs and Dexter Wansel in 1980.  It has been covered by Phyllis Hyman on her album, "Forever With You"; and sampled in the song, "Politics As Usual" by Jay-Z, on his debut album, "Reasonable Doubt".

Can't Knock the Hustle: "Can't Knock the Hustle" is the third single from rapper Jay-Z's debut album "Reasonable Doubt".  The song features a beat produced by Knobody, co-produced by Sean C and Dahoud Darien, as well as a chorus sung by Mary J. Blige.

Vol. 3... Life and Times of S. Carter: Vol.  3… Life and Times of S. Carter is the fourth studio album by American rapper Jay-Z.  It was released on December 28, 1999, by Roc-A-Fella Records and Def Jam Recordings.  According to "USA Today" critic Steve Jones, the record marked a return to the street-oriented sound of Jay-Z's 1996 debut album, "Reasonable Doubt".  "Vol.  3..." featured production from Swizz Beatz, Timbaland, K-Rob, DJ Clue, Rockwilder, DJ Premier, and Irv Gotti, among others.

Ain't No Nigga: "Ain't No Nigga" is the second single from the rapper Jay-Z's first album, "Reasonable Doubt", and is featured on the soundtrack to the 1996 Eddie Murphy movie, "The Nutty Professor".  It features a long verse of rapping from a then 17-year-old Foxy Brown.

Dead Presidents (song): "Dead Presidents" is a 1996 song by rapper Jay-Z.  It was released as the first promotional single for Jay-Z's debut album "Reasonable Doubt", although it did not directly appear on the album: a different version, with the same backing track and chorus but different lyrics, called "Dead Presidents II", appeared on "Reasonable Doubt" instead.  The single was a commercial success, and was certified as an RIAA certification gold single in June 1996.  Both versions of the song are regarded as some of the greatest hip-hop songs ever recorded, and "Dead Presidents II" was voted #16 in About.com's Top 100 Rap Songs.

Supporting paragraphs: Streets Is Watching (film) Reasonable Doubt (album)
Answer: Jay-Z