Concept:The statement "Nigeria footballers are good footballers" means all members of the set of Nigerian footballers are also members of the set of good footballers.Explanation:Let set N = Nigerian footballers.Let set G = good footballers.The premise says N⊆G, meaning every Nigerian footballer is a good footballer.So, if Joseph is a Nigerian footballer, then Joseph must belong to set G.Therefore, Joseph is a good footballer.This matches the conditional logic: Nigerian footballer ⇒ good footballer.
Answer:Option C: Joseph is a Nigerian footballer therefore he is a good footballer.
