Final answer:
Conclusion I, 'All boys are cats', and conclusion II, 'All cats are boys', do not follow from the given statements. The correct answer is option I.
Step-by-step explanation:
The given statements are:
a. All boys are snakes
S. All snakes are cats.
From these statements, we cannot conclude that all boys are cats. This is an invalid deduction. The given statements do not provide any information about the relationship between boys and cats. Therefore, conclusion I, 'All boys are cats', does not follow from the statements.
Similarly, we cannot conclude that all cats are boys. This is also an invalid deduction. The given statements do not provide any information about the relationship between cats and boys. Therefore, conclusion II, 'All cats are boys', does not follow from the statements.