Select the option that is related to the third word in the same way as the second word is related to the first word, (The words must be considered as meaningful English words and must not be related to each other based on the number of letters / number of consonants / vowels in the word.)

Lethargy : Alertness :: Gentle : ?

Harsh

Lethargy : Alertness :: Gentle : ?

THE LOGIC FOLLOWED HERE IS :

BOTH ARE ANTONYMS

AS

LETHARGY AND ALERTNESS BOTH ARE ANTONYMS OF EACH OTHER

SIMILARLY

GENTLE AND HARSH BOTH ARE ANTONYM OF EACH OTHER