How to prevent hantavirus pulmonary syndrome (hps )<br>Recognize signs of an infestation. Look for small pellets of rodent droppings about ¼-½ " (0.5-1.0 cm) in size. You may also see signs of gnawing on your furniture or rodent tracks in dusty spaces.

Can we draw the following conclusion?
Tracks in dusty spaces mean your house is rodent infested.

Pick from:
 (a). Yes
 (b). It's impossible to say
 (c). No