The harsh lights and cameras were hardly conducive _______ a relaxed atmosphere.

• শূন্যস্থানে সঠিক উত্তর হবে - to.
- Complete sentence: The harsh lights and cameras were hardly conducive to a relaxed atmosphere

• Conducive (adjective)
English Meaning: making a certain situation or outcome likely or possible.
Bangla Meaning: সহায়ক।
- সহায়ক অর্থে Conducive এর সাথে appropriate preposition হিসাবে to বসে।