Please help me with this and thank you

To know how does Maren's kitten weight is bigger than Lynn's kitten, you have simply find the difference between numbers 86.23 ounces and 67.74 ounces:
86.23-67.74=18.49 ounces.
Answer: Maren's kitten weighs 18.49 ounces more than Lynn's kitten. Correct choice is A.