Economists studying happiness have found that, beyond a certain income level, additional money does little to increase reported life satisfaction. ______ , researchers have noted that this threshold varies significantly by country, with wealthier nations showing higher saturation points.
Which choice completes the text with the most logical transition?
- A
Therefore
- Bcheck_circle
That said
- C
Likewise
- D
However
Explanation
The second sentence qualifies the general finding. "That said" signals concession/qualification. "However" pure-contrast is too strong; "therefore" implies cause; "likewise" implies parallel.