Astronomers Were at First Surprised to Find Complicated Molecules in the Interstellar

Astronomers were at first surprised to find complicated molecules in the interstellar medium. They thought ultra-violet light from stars would break apart such molecules. What protects the molecules we observe from being broken apart?

A) such molecules form in cells, and there is a protective membrane around each cell
B) such molecules always form inside stars; the stars outer layers protect them
C) such molecules form in clouds that contain significant amounts of dust, and the dust in the cloud protects them from ultra-violet rays
D) such molecules form only in the regions that are already millions of degrees hot and thus can't be affected by ultra-violet rays
E) you can't fool me; the seeming discovery of complex molecules out there was a mistake, and astronomers now realize there are no molecules out there.