The five conflicts that are found in literature are
Man vs Man
Man vs Self
Man vs Nature
Man vs Society
Man vs Supernatural
If all five of these are options, then I would go with the first four.
I hope this helps!
If a number has 5 as it's last digit, it's always divisible by 5: multiples of 5 have either 5 or 0 as the last digit.
If a number is divisible by 5, it is not a prime with one exception: of 5 itself. This is from the definition of prime numbers: divisible only by 1 and by itself.
I belive the answer is
Lord Jim