Question: What Cuban- American that played during the 1985 Oakland Athletics season , admitted to using performance-enchancing drugs during his playing career in his tell-all book in 2005? 
Context: The 1978 Oakland Athletics season was the team's eleventh in Oakland, California.  The team sought to rebound from its first losing season in a decade (a 63-99 result in 1977).  Despite low expectations, the Athletics remained competitive for nearly three-quarters of the season.  Despite posting a respectable 61-56 mark through 117 games, the Athletics collapsed in the season's final weeks; their 8-37 finish ensured a second consecutive season of fewer than 70 wins. The 2017 Oakland Athletics season was the 50th for the Oakland Athletics franchise in Oakland (all at Oakland Coliseum), as well as the 117th in club history.  The A's began the season on April 3 at home against Los Angeles Angels of Anaheim.  They will finish the season at the Texas Rangers on October 1. José Canseco Capas Jr. (born July 2, 1964), is a Cuban-American former Major League Baseball (MLB) outfielder and designated hitter.  Canseco has admitted using performance-enhancing drugs during his playing career, and in 2005 wrote a tell-all book, "", in which he claimed that the vast majority of MLB players use steroids.  After retiring from Major League Baseball, he also competed in boxing and mixed martial arts. The 1980 Oakland Athletics season was the team's thirteenth season in Oakland.  The A's, under first-year manager Billy Martin, began the season with low expectations following their insipid 1979 campaign.  Strong performances from pitchers Mike Norris, Matt Keough, and Rick Langford, along with the brilliant play of breakout star (and future Hall-of-Famer) Rickey Henderson, paved the way for a staggering 29-win increase over the previous year's output.  The Athletics, only one year removed from baseball's worst record, swung to a second-place finish behind their 83-79 record. Roger Craig Smithberg (born March 21, 1966) is a former Major League Baseball pitcher who played for two seasons.  He pitched for the Oakland Athletics for 13 games during the 1993 Oakland Athletics season and two games during the 1994 Oakland Athletics season. The Oakland Athletics' 1985 season involved the A's finishing 4th in the American League West with a record of 77 wins and 85 losses.  While the Athletics' on-field performance continued to disappoint, the debut of slugger Jose Canseco gave fans a measure of hope. The 1968 Oakland Athletics season was the franchise's 68th season and its first in Oakland, California.  The team finished sixth in the American League with a record of 82 wins and 80 losses, placing them 21 games behind the eventual World Series champion Detroit Tigers.  The Athletics' paid attendance for the season was 837,466. Stephen Robert Staggs (born May 6, 1951) is a former Major League Baseball second baseman who played for two seasons.  He played 72 games for the Toronto Blue Jays during the 1977 Toronto Blue Jays season and 47 games for the Oakland Athletics during the 1978 Oakland Athletics season. The 2014 Oakland Athletics season was the 46th for the franchise at O.co Coliseum, as well as the 114th in club history.  The Athletics entered the season hoping to win a third consecutive American League West championship; to that end, the team made a number of key signings and trades during the 2013-14 MLB offseason.  Notably, Athletics traded outfielder Michael Choice for left fielder Craig Gentry and pitcher Josh Lindblom; they also traded the promising but oft-injured Brett Anderson for reliever Drew Pomeranz.  Additional trades brought in relievers Fernando Abad (acquired for John Wooten), Luke Gregerson (acquired for Seth Smith), and Jim Johnson (acquired for Jemile Weeks and David Freitas).  In free agency, the Athletics signed former All-Star starting pitcher Scott Kazmir to a two-year deal.  These moves, among others, sought to bolster the depth of team's starting pitching and bullpen. Banned substances in baseball has been an ongoing issue for Major League Baseball.  Several players have come forward in recent years to suggest that drug use is rampant in baseball.  David Wells stated that "25 to 40 percent of all Major Leaguers are juiced".  Jose Canseco stated on "60 Minutes" and in his tell-all book "" that as many as 80% of players used steroids, and that he credited steroid use for his entire career.  Ken Caminiti revealed that he won the National League MVP award while on steroids.  In February 2009, after reports emerged alleging that Alex Rodriguez tested positive for steroids in , a year in which he was American League MVP, he admitted to having used performance-enhancing drugs (PEDs) between and 2003.  Mark McGwire, dogged by allegations of PED use for years, admitted in January 2010 that he had used steroids and human growth hormone off and on for over a decade, including in when he set the single-season home run record.
Answer: Jose Canseco