Research conducted on the number of respondents known that 30 respondents like durian juice, 25 respondents like avocado juice, 25 respondents like tomato juice, and 12 respondents like durian juice and avocado juice.

a. What is the probability that the respondent likes durian juice or juice tomato?

b. What is the probability that the respondent likes avocado juice or juice tomato?

c. What is the probability that the respondent likes durian juice or juice avocado?