Which of the following claims is best supported by the data in the graph for the population of wolves between 1975 and 1985?

The most likely claim is that the wolf population experienced a sharp decline in 1980. The graph shows a clear drop in wolf population from 1979 to 1980, from around 300 wolves to less than 200 wolves. This decline is evident as a clear downward slope of the line in the graph.

Here are the other claims and why they are not as well supported by the data:

• The wolf population increased steadily over the decade. This is not supported by the data, as the wolf population actually declined in 1980.

• The wolf population remained relatively stable throughout the decade. This is also not supported by the data, as there is a clear decline in the wolf population in 1980.

• The data is insufficient to make any claims about the wolf population trends. This is not true, as the graph clearly shows a decline in the wolf population in 1980.

Therefore, the most likely claim that is supported by the data is that the wolf population experienced a sharp decline in 1980.