Which of the following techniques would most unambiguously determine the structure of a compound that contains stereocenters?

W) Mass spectrometry [spek-TRAW-metry]

X) X-ray crystallography [crystal-AW-graphy]

Y) 1D NMR spectroscopy [spek-TRAW-scuh-pee]

Z) Atomic absorption spectroscopy
X) X-RAY CRYSTALLOGRAPHY