Final answer:
To convert a Fischer projection to a bond-line structure, rotate the Fischer projection by 90 degrees, then convert vertical lines to dashes or wedges and horizontal lines to bold lines, representing the three-dimensional orientation of the molecule's bonds.
Step-by-step explanation:
Converting Fischer Projections to Bond-Line Structures
To convert a Fischer projection to a bond-line structure, you must rotate the Fischer projection by 90 degrees. The correct answer to the question is not listed as an option A-D, but based on standard conventions for converting Fischer projections: once the molecule is in the correct orientation, you would then convert vertical lines in the Fischer projection to wedges (dashes for going away from the viewer and wedges for coming towards the viewer) and horizontal lines to bold lines, which represent bonds in the plane of the paper. This represents a three-dimensional view of the molecule where the bonds on the horizontal line of the Fischer projection, which extend towards the viewer, are coming out of the plane of the paper towards you. Conversely, the vertical lines, which represent bonds going away from the viewer, are depicted as going back into the plane of the paper in the bond-line structure.
Fischer projections are useful because they allow an easy representation of chiral centers in molecules and their configurations. However, converting Fischer projections into bond-line structures can help provide a more realistic three-dimensional perspective of the molecule's geometry. Proper understanding of these conversions is essential in fields like organic chemistry, where the spatial arrangement of atoms can greatly influence the properties and reactivity of molecules.