Question

in order for a scientific investigation to be considered valid, the evidence produced by the investigation must be a in the form of a graph. b a way to prove the hypothesis. c replicable by others. d conducted in a lab.

Explanation:

Valid scientific evidence should be able to be replicated by other researchers to ensure reliability. Evidence doesn't have to be in graph - form, may not always prove a hypothesis (it can disprove it too), and scientific investigations aren't always conducted in a lab.

Answer:

C. replicable by others