PLEASE HELP ME OUT:( ILL GIVE BRAINLIEST! What are some of the ways that scientists are using to slow down light?

hey have demonstrated that applying a mask to an optical beam to give photons a spatial structure can reduce their speed.

Explanation:

Scientists have long known that the speed of light can be slowed slightly as it travels through materials such as water or glass

Explanation:

Scientists have long known that the speed of light can be slowed slightly as it travels through materials such as water or glass. ... They have demonstrated that applying a mask to an optical beam to give photons a spatial structure can reduce their speed.

the correct answer, according to e2020, is the second choice there is an occluded front in region a and a cold front in region b.

i would say it is