1. **State the problem:** We are given a graph showing the relationship between time in minutes and the number of obstacles completed by a crow. We need to identify which of the given claims is NOT supported by the graph. 2. **Analyze each claim:** - (A) "By the second minute, the crow had completed three of the obstacles." - From the graph, at time = 2 minutes, the number of obstacles completed is about 2, not 3. So this claim is false. - (B) "All of the obstacles were of relatively equal difficulty." - The graph shows mostly steady progress with some variation, suggesting similar difficulty. This claim is plausible. - (C) "The first two obstacles took as long as the final two to complete." - The time between 0 and 2 obstacles is about 2 minutes, and between 7 and 9 obstacles (final two) is about 1 minute, so this claim is false based on the graph. - (D) "By the sixth minute, the crow had completed three obstacles that varied in difficulty." - The graph shows that by 6 minutes, about 6 obstacles were completed, with some variation in time intervals, supporting this claim. 3. **Conclusion:** The claim that is NOT supported by the graph is (A). **Final answer:** (A)