The personnel committee has gotten involved in matters beyond its jurisdiction.(became, become)

The answer is option a

C14 dating since carbon is present in both living and no living objects .

The correct answer is b

The soviet union beat the us to the first successful launch, with the october 4, 1957, orbiting of sputnik 1, and later beat the us to have the first human in earth orbit, yuri gagarin, on april 12, 1961. the "race" peaked with the july 20, 1969, us landing of the first humans on the moon with apollo 11