Query about question "The graph shows the average water level, in thousands..." [13426]

GMAT GMAT Data Insights
1

https://gmat.gregmat.com/practice/custom-practice?problem=the-graph-shows-the-average-water-level-in-thousands

For questions such as these (graphs with different colors), it is difficult to differentiate between colors for candidates affected with color blindness. Is there any way around it?

2

@Shweta can tell more about it but the GMAT, unlike the GRE, does make use of colours.