4. Three high schools A, B, and C have 3, 4, and 5 classes respectively in their first year. One class is randomly selected from these 12 classes to participate in a Chinese language test, and then one class is randomly selected from the remaining 11 classes to participate in an English test. What is the probability that the two classes participating in the tests are from the same school closest to which of the following options? (1) $21\%$ (2) $23\%$ (3) $25\%$ (4) $27\%$ (5) $29\%$
& 5 & & 15 & 4 & & 27 & 2
4. Three high schools A, B, and C have 3, 4, and 5 classes respectively in their first year. One class is randomly selected from these 12 classes to participate in a Chinese language test, and then one class is randomly selected from the remaining 11 classes to participate in an English test. What is the probability that the two classes participating in the tests are from the same school closest to which of the following options?\\
(1) $21\%$\\
(2) $23\%$\\
(3) $25\%$\\
(4) $27\%$\\
(5) $29\%$