B) \( \frac{7}{13} \times \frac{\square}{\square}=\frac{7}{13} \)

To solve \( \frac{7}{13} \times \frac{\square}{\square}=\frac{7}{13} \), we need to determine what values for the squares make this equation true. The multiplication of fractions can be simplified by understanding that any fraction multiplied by 1 will yield the original fraction. Hence, you can fill the squares with 1: \[ B) \frac{7}{13} \times \frac{1}{1} = \frac{7}{13} \] Using any equivalent fraction of 1, like \( \frac{a}{a} \) where \( a \neq 0 \), will also work. So, \( \frac{7}{13} \times \frac{a}{a} = \frac{7}{13} \) is a valid option!