The correct choices are
-graphics are popular, but design is difficult to master
-lessons improve skill, so i take several classes each month
-pottery sounds interesting,but i’m not sure i can handle the mess,
compound sentences have 2 independent clauses usually joined by a comma semicolon or conjunction
She made a proposal at the staff meeting to stop sending text.
The answer would be the first one. It has become cold and Diamelen has died.