निम्नलिखित वाक्य के उस भाग की पहचान कीजिए जिसमें व्याकरणिक त्रुटि है: They would have been (A) / here by now (B) / if they caught (C) / the early train. (D)

Identify which part of the sentence has an error: These kind of trousers/ (A) are rather/ (B) expensive to buy./ (C) No error (D)

Find the part of the sentence that has a grammatical error: 'The citizens of the area longed on rain, which is natural when it is so terribly dry year-round.'