Fill in the blank with the most appropriate word.
I found a flat on my own _____ last year.
A preposition is a word which comes before a noun or a pronoun and establishes a relationship between the elements of a clause or words. Prepositions can come before verbs in the ground form.
There are six kinds of prepositions: Prepositions for Time, Prepositions for Place, Prepositions for Direction, Prepositions for Agent, Preposition for Instruments and Prepositional Phrases.
Option C is correct as there is no need of any preposition (last and on my own).
The other options are wrong as no preposition is needed before last year.
The correct answer is C) *