When we say chronological order, this is the type of organization wherein events are arranged according to the time they happened. Therefore, this would be useful to the writer in order to make the readers understand any happenings that occurred previously. The answer would be the second option.
Paul Buchheit is the inventor of Gmail!
A. Jerry loves tennis he plays every day.
Here, there is a need for a semi colon because there are two independent clauses (Jerry loves tennis, he plays every day) that need to be separated.
Hope this helps :)
I am guessing on this but I think it might be A?