For record purposes, which of the following discs may be used?

The correct answer for the question regarding which discs may be used for record purposes aligns with the official standards set by the International Powerlifting Federation (IPF). The IPF specifies that the weight increments for record purposes include the 0.5kg, 1kg, 1.5kg, and 2kg discs.

Using these discs ensures that all lifters have the option to make precise and acceptable weight adjustments as they attempt records. The 0.5kg, 1kg, 1.5kg, and 2kg discs are standardized weights that allow for consistent increments in competitive settings, preventing any discrepancies that could arise from the use of non-standard weights.

The use of weights outside these specified discs (like the 0.25kg, 0.75kg, or non-standard combinations) can lead to confusion and inconsistent record keeping. Thus, the selection of these specific weights adheres to the regulations required for maintaining integrity in records and performances within the sport.