Tourists returning home were interviewed about which countries they had visited on their trip abroad. Of the 315 tourists Interviewed, all but 15 of them had visited at least one of Cuba, Zambia, or Laos, while exactly 45 had visited all three. 160 tourists had not travelled to Cuba and 60 had not visited Zambia. Additionally, 200 of them had not been to Laos The Interviews also revealed that 10 tourists had been to Laos only. If we also know that I had travelled to Cuba and Laos but not to Zambia, then how many people had visited both Laos and Zambia, but not Cuba?
A. 80
B. 25
C. 100
D. 90
E. 55