A. The red dress of the model sparkle down the runway
Explanation:
A subject verb agreement simply mean that the subject and verb must agree with each other in either number or in tense. The verb in option A, "<em>sparkle</em>", can be considered a plural verb, which doesn't agree with the singular noun, "<em>dress</em>". In order for this sentence to make sense, we would have to revise the whole of the sentence to be plural, or just change the verb to a singular tense.
The red dress of the model sparkles down the runway.
The red dresses of the models sparkle down the runway.
