The anaphase-promoting complex or cyclosome (APC/C) triggers the onset of anaphase by doing which of the following?
A.)phosphorylating the motor proteins that pull the spindle poles apart
B.)cleaving spindle microtubules
C.)triggering the destruction of the condensins that hold the duplicated chromosomes in a condensed state
D.)triggering the destruction of the cohesins that hold the sister chromatids together