Many science fiction writers of the mid-twentieth century imagined that by 2025 humans would be living in colonies on Mars. ______ , space exploration has remained largely robotic, with crewed missions still confined to low Earth orbit and the Moon.
Which choice completes the text with the most logical transition?
- A
Likewise
- B
Furthermore
- Ccheck_circle
In reality
- D
Therefore
Explanation
The second sentence contrasts predicted reality with actual reality. "In reality" signals this opposition. The others do not.