If you have just walked into a dark movie theatre in the middle of the day, you may not be able to determine which seats are empty and which are full because it can take a long time for to occur.

...because it can take a long time for dark adaptation to occur.

Explanation:

Dark adaptation is the ability of the visual system to adjust to new levels of illumination, recovering sensitivity after exposure to light - such as when we go from the outdoors to the indoors. This process of adjustment includes the dilation of the pupil, as well as an increase in sensitivity of the retinal rods, even though the recovery is faster in the cones.

answer; /// i do believe that the correct answer is (d) majority vote as an approval requirement;

all people shall have equal rights upon birth and ever after. (when referring to the rights of man the declaration of the rights of man only applied to landowning men who were 25 years or older and paid taxes equal to 3 days worth of work and were not servants.

explanation: hope this