Which sentences use commas correctly?

Select all that apply.

1) During Michael’s lunch break, he went to pick up his clothes at the dry cleaners.
2) Standing in a long line outside the theater the children waited, for the movie to begin.
3) The crowd cheered for Su Lin, the first runner to cross the finish line in the marathon.
4) Elms, cottonwoods, and birches lined the city’s main street and its large central park.

1,3, and 4

Explanation:

2 doesn't make sense with the comma in between "waited" and "for"

which lines ? : )

explanation:

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.