To determine the correct option for the sentence 'We're thinking of buying a ____ flat in town,' we need to understand the function of the word in question. The phrase requires a descriptive term that specifies the type of flat being considered.
Option (A) 'bedroom two': This phrase does not correctly describe the type of flat. The placement of the word 'two' following 'bedroom' is not typical in English language structure when describing something.
Option (B) 'two-bedroom': This is the correct choice. It functions as an adjective, specifying that the flat has two bedrooms. In English, it is common to use hyphenated phrases as adjectives to provide clear and specific descriptions.
Option (C) 'two bedrooms': This is not appropriate as it stands because 'two bedrooms' would function as a noun phrase on its own, rather than as an adjective describing the type of flat.
Therefore, the correct choice is option (B) 'two-bedroom'. The completed sentence reads: 'We're thinking of buying a two-bedroom flat in town.' This clearly conveys that the flat has two bedrooms. Using the right structure helps ensure the description is both clear and grammatically correct.