Correct option is C
The sentence "The politicians parted ways due to towards ideological differences" contains a prepositional error in part C.
• The phrase "due towards" is incorrect because "due to" is the fixed preposition used to indicate causation or the reason for something, while "towards" indicates a direction or approach, and they cannot be combined in this context.
• The correct sentence should be "The politicians parted ways due to ideological differences," using "due to" to correctly link the action of parting ways with the cause, which is "ideological differences."
• Prepositions in English are used to link nouns, pronouns, or phrases to other words within a sentence and must be used correctly to convey clear and precise meanings.