Which of the Following Is True

Which of the following is true?

A) Radial velocity surveys have yet to find any extrasolar planets.
B) The most common types of extrasolar planets found to date have masses more than 10 times the mass of Jupiter and lie within 5 AU of their parent star.
C) Our Solar System is the only known planetary system to contain more than one planet.
D) A star can brighten significantly because of gravitational lensing when a planet that orbits it passes directly in front of the star.
E) The Kepler Mission has not yet found terrestrial planets similar in size to Earth.