1000 participants of VR experiment were interviewed in order to learn what kind of side effects they experienced after experiment. 300 of them said they had headache, 200 complained about nausea, 100 said they had dizziness, 70 had both headache and nausea, 30 patients had both dizziness and headache, 25 had both dizziness and nausea, 400 patients did not experience any of these side effects. How many patients experienced all three side effects? Select one: O a. 125 O b. 225 O c. 525 O d. 345