To determine what fraction of the whole wall each group will paint, you need to divide the part of the wall that is covered by the mural by the number of groups.
Let's denote the fraction of the wall that the mural covers as \( x \) and the number of groups as \( n \).
In this case, if \( x \) is the fraction of the wall covered and there are 5 groups, then each group will paint:
\[ \frac{x}{n} = \frac{x}{5} \]
To find the exact fraction that each group will paint, you'll need to substitute the specific value of \( x \) (the fraction of the wall that is covered) into this formula. Unfortunately, you haven't provided a specific fraction for \( x \).
For example, if the mural covers \( \frac{2}{3} \) of the wall, you would calculate:
\[ \frac{2/3}{5} = \frac{2}{3} \times \frac{1}{5} = \frac{2}{15} \]
You would then compare this fraction \( \frac{2}{15} \) with the answer choices A, B, C, D to determine the correct one.
Please provide the fraction of the wall that the mural covers, and I can assist you further!