To solve the equation
\[
\frac{2f}{5} - \frac{8}{5} + 2f = 8,
\]
we start by simplifying the left-hand side. First, we convert \(2f\) into a fraction with a denominator of \(5\):
\[
2f = \frac{10f}{5}.
\]
Now substituting this back into the equation gives us
\[
\frac{2f}{5} - \frac{8}{5} + \frac{10f}{5} = 8.
\]
Next, we can combine the terms on the left side which have a common denominator of \(5\):
\[
\frac{2f + 10f - 8}{5} = 8,
\]
which simplifies to
\[
\frac{12f - 8}{5} = 8.
\]
To eliminate the fraction, we multiply both sides of the equation by \(5\):
\[
12f - 8 = 40.
\]
Next, we want to isolate \(12f\) on one side. To do this, we add \(8\) to both sides:
\[
12f = 48.
\]
Finally, we divide both sides by \(12\) to solve for \(f\):
\[
f = \frac{48}{12} = 4.
\]
The solution to the equation is
\[
\boxed{4}.
\]
(Note: The given options were not used in finding the solution, as they were inconsistent with the derived answer \(f = 4\).)