Select the most appropriate option to fill in blank no. 3.
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. By.
Context: The sentence describes the means or method by which individuals participate in sustainable practices.
Meaning of the words:
Again – One more time; not suitable here
By – Indicates the method or means
Also – Indicates addition; does not show method
And – Connects two ideas; does not show method
Correct word: By
Reason: “By” correctly introduces the method of participation — adopting the habit.
Final Sentence: By adopting this habit, individuals actively participate in sustainable practices.
Hence the chosen option is correct.