Which word will enable a logical transition between the given sentences?

The lake was always so clear and cool on the hot afternoons at camp. Charlotte was an excellent swimmer. She also enjoyed the campfires a lot.
Her favorite part was the talent show that the campers put on at the end of the summer.

A. Therefore
B. But
C. suddenly
D. Thus

A

Explanation:

because it talks about the question when it said therefore.

this doesn't support enough information to answer the question.

world war i had a devastating effect on german-americans and their cultural heritage. up until that point   german-americans, as a group, had been spared much of the discrimination, abuse, rejection, collective mistrust experienced by so many different racial and ethnic groups in the history of the united states. indeed, over the years, they had been viewed as a well integrated and esteemed part of american society. all of this change with the outbreak of war.