sunlight is slowed most when traveling through\na water.\nb a vacuum.\nc the atmosphere.\nd none of these…

sunlight is slowed most when traveling through\na water.\nb a vacuum.\nc the atmosphere.\nd none of these, as light always travels at the same speed.

sunlight is slowed most when traveling through\na water.\nb a vacuum.\nc the atmosphere.\nd none of these, as light always travels at the same speed.

Answer

Brief Explanations:

Light travels at its maximum speed in a vacuum. The speed of light decreases when it enters a medium. Among water, a vacuum, and the atmosphere, water has a higher refractive - index compared to the atmosphere. A higher refractive - index means light travels more slowly in that medium.

Answer:

A. water