You have collected data to 2.8 A resolution, and you try merging the data using various symmetries to see which one best describes your crystal. What is the probable space group? (i.e. Which is the space group with the highest symmetry that still has a low Rsymm?) Space Group Crystal System Rsymm (%) P1 Triclinic 4.1 P21 Monoclinic 4.2 C2 Monoclinic 55.2 P222 Orthorhombic 4.1 C2221 Orthorhombic 54.8 P43 Tetragonal 4.2 P422 Tetragonal 45.3 P32 Trigonal 61.7 P3 Hexagonal 62.3 P432 Cubic 55.3 P1 P21 C2 P222 C2221 P43 P422 P32 P69