Answer:
Option B is the correct answer.
Step-by-step explanation:
Irina measured the weight of her dog as 13 pounds.
If value is 13 she rounded the values in between 12.5 to 13.49 to 13 pounds.
Maximum possible error = 13 - 12.5 = 0.5 pounds.
Maximum possible error = 0.5 pounds.
Option B is the correct answer.