They have literally TONS of castles all over the place . I had to have seen at least 10 just driving around . Coupled with the fact that tourism is very very small in Wales they do n't have visitor centers and charge you to see them . You just drive up and walk in .

Based on the preceding passage, choose your answer for question Why do they have so much of what they have ?
Available choices:
[a]. None of the above choices .;
[b]. The tourism love their place a great amount .;
[c]. The castles must 've all been built in the past .;
[d]. The huge amount of tourism must be there to see the castles .;
The answer is:
[c].