The antonym of "nonchalant" is ____ .
A. needless
B. apathetic
C. concerned
D. beneficial
DUUnit-Bইংরেজি - গ্রামার ও ভোকাবুলারিপুরাতন/বহির্ভুত সিলেবাস/লিখিতDU - ⚡ অনলাইন প্রশ্নব্যাংক দেখুন 💥
সঠিক উত্তরঃ
C.
concerned
Explanation:

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