Correct option is D
Option (d) is the correct substitution of the highlighted phrase.
The highlighted segment "adopts itself" in the sentence is incorrect.
The correct word to use in this context is "adapts."
· "Adapts" means to adjust or change to suit different conditions or environments, which is the intended meaning in the sentence.
· The word "adopts" does not convey the same meaning in this context, and it is not the appropriate substitution.
· Therefore, option (d) "frog adapts itself" is the correct substitution to convey the idea that the frog adjusts to live both in water and on land.