Option A is the correct answer. It is an extended definition of the word "noisome". This is true because extended definition gives further explanation of the term being considered.
In this question, "noisome" is the word under consideration. So, in order to define it extensively, it is used to make a sentence buttressing and explaining what it actually means and it be applied in a sentence.
If you notice, other options were actually giving the main meaning of noisome but option A uses it in a sentence to explain better and show how applicable it is in a sentence.
