What Was the First Direct Evidence That Some Other Solar-Type

Multiple Choice

What was the first direct evidence that some other solar-type stars might have planets?

A) faint pinpoints of light slowly circling some stars, as seen through the new 8- and 10-meter telescopes
B) slightly wavy path of a star through space, as if the star were being tugged by an orbiting planet
C) cyclic Doppler shift variations in the spectra of several stars
D) warped disks of dust and gas around some young stars