Topic: Subject Verb Agreement,

Best Answer Explained in Below-:

The sentence "The furniture in this room ---- made of teak." requires a verb that correctly links the subject "the furniture" with the information about its material composition, which is teak.

Let's analyze the options:

A) "have" is incorrect because "furniture" is a collective noun and does not use "have" in this context. Instead, it would use "is" to indicate a characteristic of the furniture.

B) "had" suggests a past tense, which does not fit. If the sentence was discussing a previous state of the furniture, it would require more context or rephrasing.

C) "is" is the appropriate choice as it is the present tense form of the verb "to be," which correctly indicates the current state of the furniture in the room. The sentence then reads "The furniture in this room is made of teak," clearly stating that the furniture's material is teak at present.

D) "None" is not the correct answer as "is" fits the grammatical structure and meaning of the sentence perfectly.

In summary, option C is the correct choice as it establishes a current and ongoing relationship between the furniture and its material.