Institution: জাতীয় কবি কাজী নজরুল ইসলাম বিশ্ববিদ্যালয় (JKKNIU) Exam: ঙ ইউনিট || জাতীয় কবি কাজী নজরুল ইসলাম বিশ্ববিদ্যালয় || 2012
Topic: Sentence (বাক্য), Subject: English Grammar (ইংরেজি গ্রামার)

Best Answer Explained in Below-:

The question "A young cat is -------" seeks a term that accurately describes a young cat. The options provided include A) A cub, B) A colt, C) A calt, and D) A kitten.

Among these options, "kitten" (D) is the correct answer. A kitten specifically refers to a baby cat, typically under one year old. This term is widely recognized in the English language and is used in both casual and scientific contexts to refer to young felines.

The other options do not fit this description. A) A cub refers to the young of certain mammals, primarily large carnivores like bears and big cats (lions, tigers), but not domestic cats. B) A colt is a young male horse, showing that it pertains to equine animals rather than felines. C) A calt appears to be a non-standard term and is not widely recognized in the context of animal nomenclature.

Thus, "kitten" is the only option that directly and accurately describes a young cat, making it the correct choice in this scenario.