Which position in rugby union is normally known just by its number?

Question: Which position in rugby union is normally known just by its number?

Options:

No 4 forward
No 11 winger
No 8 forward
No 15 full back

Correct answer:

No 8 forward

Other game answers: Logos Pop Quiz Answers, 100 Cartoon Quiz answers, 2 Pics 1 Phrase Word Answers.