An international team of astronomers has discovered 11 new planets outside the solar system, raising fresh ______ about the possibility of life in outer space.

A．discoveries of new planets set scientists thinking
B．extrasolar planets exist in the universe
C．solar system should be re-examined by mankind
D．new discovery depends on new theory

A．The narrator, "T" is with mixed blood.
B．"My" great-grandfather was worshiped as a self-made man.
C．"My" family suffered a lot in the time of Ku Klux Klan.
D．John Wesley attributed his success to his great mother.