Recent results from very bright supernovae in very distant galaxies seem to indicate that the expansion of the universe select one:

a. is continuing at a constant rate and has done so since just after the big bang.
b. has now stopped and the universe will shortly begin to contract again toward a recollapse.
c. is accelerating (speeding up).
d. is decelerating (slowing down).

c. is accelerating (speeding up).

Explanation:

Recent results from very bright supernovae in very distant galaxies seem to indicate that the expansion of the universe is accelerating.

The findings of very distant supernovae by the Hubble Space Telescope indicated that the universe has progressed more slowly than it is now. In other words, due to gravity, the expansion of the universe was not decreasing, but is instead accelerating mysteriously. Scientist name this force as Dark energy. It a mysterious force still to be decoded by the scientist.

you'd use the equation that establishes a relationship between  energy  and  wavelength, which looks like this

e=h⋅cλ, where

λ  - the wavelength of the photon; c  - the speed of light, usually given as  3⋅108m/s; h  -  planck's constant, equal to  6.626⋅10−34j s

plug the value you were given for the energy of the photon in the above equation to get the wavelength

e=h⋅cλ⇒λ=h⋅ce

λ=6.626⋅10−34js⋅3⋅108ms−1.257⋅10−24j=1.581⋅10−1m