3: hominids are the group of primates that includes humans, gorillas, and chimpanzees. in 1997 a team of scientistsdiscovered three fossilized hominid skulls and other artifacts found at the dig site in ethiopia. since it is difficult todetermine the age of once living organisms, the scientists used radioactive dating on the igneous rock thatsurrounded the remains to determine their age.

why would scientists choose radioactive dating to determine the age of the igneous rock?

a: this method is an easier way to determine the age of rocks.
b: the procedure allows for the rock samples to be preserved.
c: this process provides scientists with the exact age of rocks.
d: the rate of decay in the rock provide an accurate way to calculate age.