Is the following a valid syllogistic argument? Identify its major and minor premise. 1. Statement: All dolphins are mammals. 2. Statement: All mammals are animals. 3. Conclusion: Dolphins are animals. Select the correct answer below: Valid; Major premise: All dolphins are mammals. Minor premise: All mammals are animals. Invalid; Major premise: All dolphins are mammals. Minor premise: All mammals are animals. Valid; Major premise: All mammals are animals. Minor premise: All dolphins are mammals. Invalid; Major premise: All mammals are animals. Minor premise: All dolphins are mammals.