Select the word segment that substitutes (replaces) the bracketed word segment correctly and completes the sentence meaningfully. Select the option 'no correction required' if the sentence is correct as given.
An hour later, a dog began to howl somewhere (in a farmhouse far down) the road.

The correct answer is (a) No correction required.
Explanation:
The phrase "in a farmhouse far down the road" is grammatically correct and contextually appropriate. It indicates the location of the farmhouse relative to the speaker.
Meanings of other options:
· Inside a farmhouse far downwards: Incorrect; the word "downwards" implies direction but does not fit the context.
· At farmhouse far up: Incorrect; it doesn’t make sense without an article, and "up" is incorrect in this context.
· Into a farmhouse far down: Incorrect; "into" suggests entering, which is unnecessary here.
Correct sentence:
"An hour later, a dog began to howl somewhere in a farmhouse far down the road."