Answer:
B. in England, she met
Explanation:
In this scenario, the semi colon should be correctly substituted for a comma. A comma is a punctuation mark (,) used to indicate a pause in a sentence. Comma are used in a variety of ways. However, the way or usage applied in this case is the use of comma after introductory clauses/phrases or words that comes before the main clause. Here the introductory clause was "While Sara was traveling in England". So, the comma is placed after England to create a pause and then allow for the follow up statement to flow with the introductory statement.