Which of the following demonstrates a correct way to combine two independent clauses?

question 7 options:

the two dogs played in the yard; they are best friends.

after i raked the entire yard, the wind blew and it was completely covered in leaves again.

two children are decorating cookies, they want to eat them!

the cars driving down the highway must obey the speed limit, and the lanes.

many scientists' predictions of climate change include: warmer temperatures, rising sea levels, and more frequent storms.

that is the wrong

after the signature of the treaty of versailles in june 1919, germany lost nearly 25,000 square miles and a population of 7 million people. these territories included eupen-malmedy area and moresnet which were ceded to belgium. regarding relations with france, germany ceded the sovereignty of the saar coal mines to this country, as well as the provinces of alsace-lorraine.

explanation: