Answer:
1.) Mario trajo la camra digital que le regalo Gema.
2.) Natalia escribio un mensaje de texto a su hermana.
Hello!
"El árbol es ______", translates to "This tree is ______." Since we are given two choice, suyo and suya, one of the them is obviously feminine and ther other is masculine.
Since "el árbol" is masculine, we use the possessive word, "suyo", meaning "yours".
Therefore, el árbol es suyo.
I'm pretty sure it's C because it translates to They are____. They need to eat.