Which herbicides are known to translocate with sugar flow?

The correct answer highlights herbicides that effectively translocate through the plant system in coordination with sugar flow, which is vital for targeting the plant's active growth areas.

2,4-D and MCPA are well-known systemic herbicides that move throughout the plant tissue, especially during periods of active growth when the plant is transporting sugars and nutrients. This movement allows the herbicide to reach various parts of the plant, including the roots and flowers, leading to more effective weed control.

The other herbicides listed in the other options either do not translocate or are limited in their movement within the plant. Glyphosate, while it does translocate, is not found in the specified group and works well through systemic action but has a different mechanism compared to the more traditional auxin herbicides like 2,4-D and MCPA. The remaining options include herbicides that may not exhibit the translocation trait effectively or have different modes of action that do not rely on sugar flow for their distribution within the plant.