Which of the Following Methods Has Led to the Most

Multiple Choice

Which of the following methods has led to the most confirmed discoveries of massive planets orbiting near their parent stars?

A) detecting the shift of the star's position against the sky due to the planet's gravitational pull
B) detecting a planet ejected from a binary star system
C) detecting the gravitational effect of an orbiting planet by looking for the Doppler shifts in the star's spectrum
D) detecting the infrared light emitted by the planet
E) detecting the starlight reflected off the planet