Michael Stravato/For The Washington Post via Getty Images Mack Beggs, a 17-year-old competition-winning wrestler living in Texas, has been told to wrestle in a girls’ category, or give up his sport. Mack Beggs had to choose. Beggs, a 17-year-old Texas transgender boy who has been taking testosterone for well over a year, could either continue wrestling in a girls’ category—as the state athletics league required—or give up his sport. To him, the choice was obvious.