1)"You’re just like an ostrich, burying your head in the sand!" (2)We say this about a person who foolishly pretends not to notice danger approaching. (3)Actually, the ostrich does not do anything quite so silly. (4)When threatened, an ostrich may sit down and stretch its long neck against the ground. (5)In that position, the bird resembles a grassy mound of earth. (6)This is also the ostrich’s position while guarding its nest. (7)During the day, the dull-brown-colored female stretches out across the nest. (8)At night, the black male takes over. Click on the inference most firmly based on the information in the passage:

A. During the day, the natural environment of the ostrich probably is a dull brown color.

B. Ostriches are among the most intelligent of animals.