An error was made when attempting to view the line-angle structure of L-Threose from a specified direction in order to convert it to the Fischer projection. What was the error?

• A. The error was in not performing a 180° bond rotation to remove the zigzag conformation.
• B. The error was in the specified direction of viewing the line-angle drawing. It should be viewed at the top left of the C3-C4 bond.
• C. The error was in the given line angle drawing of L-Threose. One hydroxyl group should be on a wedge, while the other should be on a dash.
• D. The error was in the given line-angle drawing of L-Threose. Both hydroxyl groups should be on a dash.

Answer: (A)