He is deeply concerned ________ this issue.

A at

B in

C across

D about

Solution

Correct Answer: Option D

- Be concerned about/for অর্থ- উদ্বীগ্ন হওয়া।
- He is deeply concerned about this issue- সে এই বিষয়ে গভীরভাবে উদ্বীগ্ন।

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