The correct answer is D. 2143.
The first word is “Sarla”. This is a name, so it is most likely the name of the person who is reading the novel. The second word is “novel”. This is a type of book, so it is most likely the title of the book that Sarla is reading. The third word is “a”. This is an indefinite article, so it is most likely used to introduce the title of the book. The fourth word is “reads”. This is a verb, so it is most likely used to describe what Sarla is doing.
If we put the words together in the order that they appear in the question, we get “Sarla reads a novel”. This sentence makes sense, so it is the most likely answer.
The other options are not as likely. Option A, 1432, is the reverse of the correct answer. Option B, 3214, is not a grammatically correct sentence. Option C, 3241, is not a complete sentence. Option D, 2143, is the correct answer.