Correct answer # 2: The world's nations must cooperate; one nation cannot solve the world's problems by itself.
When you connect two related independent clauses or sentences you use a semicolon. Both sentences should be completed grammarly writtend and with a connection. Make sure you do not write a capital letter after the semicolon, unless it is a proper name.
Answer # 3 is incorrect as there is a capitalized word
Answer # 1 it is incorrect to use "for" as the sentence is grammarly completed
Answer:
Dally grabs Ponyboy and says that they have to quickly go to the hospital because Johnny is dying. Ponyboy isn't feeling very well himself. He is still sick and has been cut and bruised. When they are stopped by the police for speeding, Dally is able to point to Pony and say that he is rushing him to the hospital. The police officer believes him and escorts them the rest of the way.
Explanation:
The police officer believes him and escorts them the rest of the way.
Buy doing the thing that is dine to be yes