To and fro' is an idiom. Here 'to' is used as a/an ___
A
adjective
B
preposition
C
adverb
D
infinitive maker
Correct Answer: adverb
To and fro' এই idiom টিতে to মূলত towards এর৷ সংক্ষিপ্ত রুপ এবং এটি adverb. । Correct ans: - adverb