2) Which sentence is punctuated correctly?
Along her journey, Alice met Harvey The Cat, Bernie The Dog, and Frankie Fish
Along her journey Alice met, Harvey the cat, Bernie the dog and Frankie Fish.
Along her journey, Alice met Harvey the cat Bernie the dog and Frankie Fish
Along her journey, Alice met Harvey, the cat, Bemie, the dog, and Frankie Fish.
Here you are giving more information about the things Alice found on her journey and after giving information you indicated a pause in the flow of the sentence.