Correct option is B
Option
(b) contains an error.
Explanation: The subject in the sentence is "Conspiracy theories," which is plural. Therefore, the verb should agree with the plural subject. The correct verb is "thrive," not "thrives" (which is singular).
Grammatical rule used: Subject-Verb Agreement – A plural subject requires a plural verb. Explanation of the grammatical rule in Hindi
विषय-क्रिया समझौता: यदि वाक्य में विषय बहुवचन है, तो इसके लिए बहुवचन क्रिया का उपयोग किया जाता है।
Correct Sentence: Conspiracy theories thrive on distrust of the government.
Example: Incorrect: The students learns quickly. Correct: The students learn quickly.