Step 1: Concept Molecules can be represented in 2D to show their 3D configuration using specific conventions.
Step 2: Meaning A cross-shaped representation where vertical lines go into the plane and horizontal lines come out is a Fischer projection.
Step 3: Analysis The described image uses a simple cross with four groups at the ends, which is the standard way to draw Fischer projections.
Step 4: Conclusion This specific 2D cross representation is the Fischer projection formula.
Final Answer: (B)