The polynomial function f (x) = 5 x Superscript 5 Baseline + sixteen-fifths x minus 3 is graphed below.

On a coordinate plane, point P is shown on the graph of a function. Point P is at (0.6, 0).

Which is a potential rational root of f(x) at point P?
The root at point P may be Three-fifths.
The root at point P may be One-fifth.
The root at point P may be Five-thirds.
The root at point P may be One-third.