Answer:
Animal 2 has maximum acceleration from x = 25 to x = 50
Explanation:
For animal 1
Average velocity at t = 3.5 s

Average velocity at t = 3 s

so average acceleration is given as


For animal 2
Average velocity at t = 5.5 s

Average velocity at t = 4.5 s

so average acceleration is given as


For animal 3
Average velocity at t = 9 s

Average velocity at t = 7 s

so average acceleration is given as


For animal 4
Average velocity at t = 11 s

Average velocity at t = 6 s

so average acceleration is given as

