The biologist initially hypothesized that the lizard's color change served as camouflage. ______ , further observations suggested that the color shifts functioned primarily in social signaling rather than predator avoidance.
Which choice completes the text with the most logical transition?
- Acheck_circle
However
- B
Therefore
- C
Likewise
- D
In particular
Explanation
Observations contradicted the hypothesis. "However" signals contrast. The others do not.