Easy
1 point
ID: #15151
Question
It was a/an - advice but the scientists did not pay attention to it.
Options
1
intersting
Correct Answer
2
rudimentary
Correct Answer
3
sound
Correct Answer
4
radical
Correct Answer
Explanation
'Sound' means based on reason, sense, or judgment. 'Sound advice' is a common collocation meaning good and reliable advice.