B. until - until he comes for example ( time before someone comes or something is happened) Meanwhile - during a period or an action where another thing is happening (at that time) Later - after some period - two months later ( after passing of some amount of time
I am pretty sure is B because transition words are like for example: Until, Mary had been 18 . Meanwhile, Mary taught the students Later, she ate cookies It is like what she do first middke and end. Like in a story. Plz mark as brainliest say thanks and give 5 stars.
