There really isn't one, except some people use supper to refer to lunch on Sundays. Aside from that, they are different names for the same meal.
Answer: D. Roger should have practiced more if he wanted to win the tournament
Explanation: Subjective is almost like an opinion, it is not a fact or cannot be confirmed. A is not the answer because although the COACHES are saying an opinion, the sentence is not stating an opinion. B is also a fact, and it could be C but it's not entirely an opinion.
Hope that helped!
An underlying message about life, so basically the overall lesson the author wants the audience to know.