Which is the best summary of this paragraph? the engima machine
At Bletchley Park, thousands of people worked hard to help the British and Allied troops during the war.
At Bletchley Park, the ten thousand people on the staff figured out over six thousand codes, some of which were very important to the war effort.
Ten thousand people worked at Bletchley Park, but some of the codes they solved were inconsequential to the war effort.
Six thousand codes were figured out at Bletchley Park, including some that had importance in regard to the war.