Exoplanets Have Been Detected Around Binary Stars Through

Multiple Choice

Exoplanets have been detected around binary stars through

A) their effects on the spectra of the stars.
B) the slow increase in the orbital period of the stars, induced by the planet's gravity.
C) the slow decrease in the orbital period of the stars, induced by the planet's gravity.
D) their effects on the timing of eclipses of the stars.