Explanation:
My mom suggested to keep the surroundings clean and green.
American archeologist Hiram Bingham gets his first look at Machu Picchu, an ancient Inca settlement in Peru that is now one of the world's top tourist destinations.
I believe the correct answer from the choices listed above is the second option. The reciprocal pronouns each other and one another are used when two or more subjects in a sentence are also <span>objects. Hope this answers the question. Have a nice day.</span>