The Isotope 235

The isotope 235
92 U is radioactive and decays in a series to 227
90 Th.In this series,the particles ejected from the nucleus are

A) one alpha particle and three beta-minus particles.
B) three alpha particles and one beta-minus particle.
C) one alpha particle and four beta-minus particles.
D) four alpha particle and one beta-minus particle.
E) two alpha particles and two beta-minus particles.