To determine the amount of protein Luisa consumed from 3 ounces of pretzels, we first need to know the protein content of pretzels.
Typically, pretzels (specifically, soft or hard ones) have around 3 grams of protein per ounce. Therefore, for 3 ounces:
\[ 3 \text{ ounces} \times 3 \text{ grams of protein/ounce} = 9 \text{ grams of protein} \]
However, since none of the provided responses reflect that exact number, it would be helpful to check the closest value based on some potential rounding or variations in nutritional content of different types of pretzels.
Since 9 grams of protein is not listed, let's re-evaluate options in case there's an error in protein calculation or in the options presented.
Given the choices:
- 87.79 g
- 8.79 g
- 7.79 g
- 77.79 g
8.79 g appears to be the closest answer based on common nutritional values which may imply additional inaccuracies in the protein content figures.
Assuming this type of pretzel provides lower protein, then the response to choose would be 8.79 g as it is closer to the calculated value considering protein content variability in different pretzel brands.