Question with options: can we draw the following hypothesis from the context?

Context:

The new study refutes earlier findings by researchers at the University of California, Los Angeles, who concluded that the odds of getting head and neck cancers rose in tandem with the frequency and duration of marijuana use.

Hypothesis: The latest findings contradict a California study that implicated regular pot smoking as having markedly higher risks for head and neck cancers.
Select from:
(i). yes;
(ii). no;
A:
(i).