A thought recently struck Paralympic gold medalist Oksana Masters: What would young Oksana, the one who shuffled between Ukrainian orphanages, think of this grown-up version? Young Oksana was always resilient, determined and headstrong—qualities that helped her persevere through years in an orphanage and with birth defects believed to be from the aftermath of Chernobyl, the world’s worst nuclear accident. That malnourished orphan eventually was adopted by her American mother. Now 32, Masters remains just as resilient, determined and headstrong—qualities that helped her rise to the top in multiple Paralympic sports spanning the Winter and Summer Games. She cruised to a gold medal Tuesday in her classification of a hand-cycle time trial in Tokyo. It was her ninth career Paralympics medal and third of the gold variety. “All the stuff that was ingrained in my younger self, are also the reasons why I’ve been able to, with the support of so …