The portion of the line 4x + 5y = 20 in the first quadrant is trisected by the lines L1 and L2 passing through the origin. The tangent of an angle between the lines L1 and L2 is:
1
\( \frac{8}{5}\)
2
\( \frac{25}{41}\)
3
\( \frac{2}{5}\)
4
\( \frac{30}{41} \)