The team studied the migration patterns of monarch butterflies for more than a decade. ______ , they discovered that the multi-generational journey relies on a sun-based compass and an internal circadian clock.
Which choice completes the text with the most logical transition?
- A
Likewise
- B
However
- Ccheck_circle
In doing so
- D
By contrast
Explanation
The discovery came as a result of the long study. "In doing so" signals an outcome of an action. The others do not.