Question

a chemist measuring the viscosity of oils records the instruments and methodology used, so that another scientist will be able to achieve exactly the same results of the experiment. this is an example of
a inference.
b observation.
c replication.
d hypothesize.

Explanation:

Replication in science means repeating an experiment. Here, the chemist records instruments and methodology so another scientist can repeat (replicate) the experiment and get the same results.

Answer:

C. replication.