She is good ... mathematics (use article)

A in

B on

C at

D of

Solution

Correct Answer: Option C

- Good at বলতে কোন কিছুতে দক্ষ বোঝায়।
- এখানে শূন্যস্থানে at preposition বসবে।
- She is good at Mathematics  : সে গণিতে দক্ষ। 

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