In conclusion it is important to strive to reach your goals because mental health is an important role in every individuals life. It helps humans to maintain a meaningful life and happiness. It is essential to be happy to have the best outcomes in life
The correct answer is D, because there are three independent clauses in this sentence, all of the clauses are independent. A means that there is at least one dependent clause, which is not the case here, and B means the same. C mean that there is only one independent clause in the sentence.
