NASA's Solar Dynamics Observatory is a. landing rovers on the suns surface
b. providing high clarity images of the sun
c. two of these
d. examining the suns innermost core

Bhope this : )

The soviet union beat the us to the first successful launch, with the october 4, 1957, orbiting of sputnik 1, and later beat the us to have the first human in earth orbit, yuri gagarin, on april 12, 1961. the "race" peaked with the july 20, 1969, us landing of the first humans on the moon with apollo 11

only b 

The answer is b, as with an inference you make a statement with no evidence