Which sentence contains a nonrestrictive clause and is punctuated correctly?
the teacher packed picnic lunches for all the students—which they loved—and ate lunch outside with them at recess.
the teacher packed picnic lunches for all the students which they loved—and ate lunch outside with them at recess.
the teacher packed picnic lunches (for all the students) which they loved and ate lunch outside with them at recess.
the teacher packed picnic lunches for all the students which they loved and ate lunch outside with them (at recess).

giving 99 points

- the mistakes that have been done in the past will repeat themselves

- you will trust all the wrong people

b. cronkite, a trusted television personality, declared that the war was unwinnable and told the american people that the government had better find a way out

even though it went against everything the news anchors typically stood for, cronkite voiced an opinion and took a stance, telling the us that there was no way they were going to win, the war was going to end in a stalemate. 

the answer is: the start of world war i, and russia’s hopes of benefiting from it

during world war i russian joined due to in their current crisis they were being supported by france and the war was already declared to them by germany, they needed to maintain their political goal and leadership role in the balkans, and is the same feeling that this excerpt evoke the eager of maintain the land value.