In the following questions, a part of the sentence has been highlighted. Choose the most appropriate replacement from the given options. If no improvement is required, choose the option accordingly. The luggage are heaped high in the corner of the hotel room, ready for our departure tomorrow morning.

The error lies in subject–verb agreement and word usage. “Luggage” is an uncountable noun and is treated as singular. Thus: “luggage are” → incorrect correct form → “luggage is” Additionally: “heaped high” is not the most natural expression in this context. “Luggage is piled” is: grammatically correct, contextually natural, stylistically smooth. Why others fail: (a) original sentence contains grammatical error (b) “luggages” is incorrect because luggage is uncountable (c) “is store” → incorrect verb form (e) tense inconsistency and awkward structure Hence, option (d).