Select the most appropriate option that can substitute the highlighted segment in the given sentence. If there is no need to substitute it, select ‘No improvement required’.
I am so glad that I ran into you on the way.

Correct option is B

The correct substitution of the highlighted words is "No improvement required."
Error identification: There is no grammatical error in the highlighted segment.
Grammatical Rule used: The phrasal verb "ran into" means to meet someone by chance.
Corrected sentence: I am so glad that I ran into you on the way.