To an Observer on Earth,dust in the Interstellar Medium Will

Multiple Choice

To an observer on Earth,dust in the interstellar medium will cause a star to appear

A) brighter and cooler than it really is.
B) brighter and hotter than it really is.
C) fainter and cooler than it really is.
D) fainter and hotter than it really is.
E) unchanged in brightness or apparent color.