Does anyone know this?

Answer:
C is correct.
Step-by-step explanation:
You just have to find the difference between the bags in lbs.
Kitty foods sells their cat food in 3¾ lbs.
Cat Caterers sells theirs in 2⅛ lbs.
The difference is given by;
[tex]3 \frac{3}{4} - 2 \frac{1}{8} [/tex]
We convert to improper fractions to get:
[tex] \frac{15}{4} - \frac{17}{8} [/tex]
We now find LCM to obtain:
[tex] \frac{30 - 17}{8} = \frac{13}{8} = 1 \frac{5}{8} lbs[/tex]
Therefore the correct answer is C