The Most Precise Method of Obtaining Estimates of the Absolute

The most precise method of obtaining estimates of the absolute ages of geological deposits is

A) measure rates of sedimentary rock formation.
B) measure the ratios of various radioactive isotopes in the deposits.
C) apply the principle of superposition (younger deposits above older deposits) .
D) make salinity measurements in ocean sediment deposits.
E) study the sequence of fossil types in the deposits.