61
Petrol is sold . . . . . . . . the liter.
Answer & Solution
Answer: Option
A
Solution:
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. 'By' is correct as it indicates an agent. The other options are wrong as from, at, and on indicate a source, a specific location, and a surface respectively.